From 6aea1c486c284039c399e83427e465fa17899588 Mon Sep 17 00:00:00 2001
From: Joshua Parkin <joshuadparkin@gmail.com>
Date: Tue, 10 Oct 2023 11:55:50 +0100
Subject: [PATCH] add back old holochain only link language

---
 .../p-diff-sync-socket-signaling/.gitignore   |   19 +
 .../p-diff-sync-socket-signaling/README.md    |    3 +
 .../p-diff-sync-socket-signaling/esbuild.ts   |   39 +
 .../hc-dna/Cargo.lock                         | 2795 +++++++++++++++++
 .../hc-dna/Cargo.toml                         |   11 +
 .../hc-dna/build.ps1                          |    2 +
 .../hc-dna/build.sh                           |    3 +
 .../hc-dna/default.nix                        |   14 +
 .../hc-dna/holochain_version.nix              |   20 +
 .../hc-dna/nix/sources.json                   |   14 +
 .../hc-dna/nix/sources.nix                    |  174 +
 .../hc-dna/workdir/dna.yaml                   |   21 +
 .../zomes/perspective_diff_sync/Cargo.toml    |   28 +
 .../zomes/perspective_diff_sync/src/errors.rs |   25 +
 .../zomes/perspective_diff_sync/src/inputs.rs |   29 +
 .../zomes/perspective_diff_sync/src/lib.rs    |  195 ++
 .../src/link_adapter/chunked_diffs.rs         |  207 ++
 .../src/link_adapter/commit.rs                |  171 +
 .../src/link_adapter/mod.rs                   |   10 +
 .../src/link_adapter/pull.rs                  |  846 +++++
 .../src/link_adapter/render.rs                |   42 +
 .../src/link_adapter/revisions.rs             |   32 +
 .../src/link_adapter/snapshots.rs             |  264 ++
 .../src/link_adapter/test_graphs.rs           | 1495 +++++++++
 .../src/link_adapter/tests.rs                 |  103 +
 .../src/link_adapter/topo_sort.rs             |  143 +
 .../src/link_adapter/workspace.rs             | 1427 +++++++++
 .../perspective_diff_sync/src/retriever.rs    |   35 +
 .../src/retriever/holochain.rs                |  199 ++
 .../src/retriever/mock.rs                     |  530 ++++
 .../src/telepresence/mod.rs                   |    2 +
 .../src/telepresence/signal.rs                |   30 +
 .../src/telepresence/status.rs                |  232 ++
 .../zomes/perspective_diff_sync/src/utils.rs  |   46 +
 .../Cargo.toml                                |   18 +
 .../src/impls.rs                              |   68 +
 .../src/lib.rs                                |  169 +
 .../hc-dna/zomes/tests/common.ts              |    6 +
 .../zomes/tests/download-hc-binaries.sh       |   14 +
 .../hc-dna/zomes/tests/index.ts               |   49 +
 .../hc-dna/zomes/tests/package.json           |   40 +
 .../hc-dna/zomes/tests/pull.ts                |  273 ++
 .../hc-dna/zomes/tests/queue.ts               |   82 +
 .../hc-dna/zomes/tests/render.ts              |  270 ++
 .../hc-dna/zomes/tests/revisions.ts           |   92 +
 .../hc-dna/zomes/tests/signals.ts             |  106 +
 .../hc-dna/zomes/tests/stress.ts              |  355 +++
 .../hc-dna/zomes/tests/telepresence.ts        |  172 +
 .../hc-dna/zomes/tests/tsconfig.json          |   16 +
 .../hc-dna/zomes/tests/utils.ts               |   86 +
 .../hc-dna/zomes/tests/yarn.lock              | 1833 +++++++++++
 .../p-diff-sync-socket-signaling/index.ts     |   59 +
 .../integration-test.js                       |   20 +
 .../linksAdapter.ts                           |  378 +++
 .../p-diff-sync-socket-signaling/package.json |   43 +
 .../rollup.config.hc-dna.js                   |   71 +
 .../telepresenceAdapter.ts                    |   39 +
 .../tsconfig.json                             |    8 +
 bootstrap-languages/p-diff-sync/esbuild.ts    |   19 +-
 .../zomes/perspective_diff_sync/src/lib.rs    |   14 -
 .../src/link_adapter/commit.rs                |   37 +-
 .../src/link_adapter/pull.rs                  |    2 +-
 bootstrap-languages/p-diff-sync/index.ts      |    5 +-
 .../p-diff-sync/linksAdapter.ts               |  104 +-
 bootstrap-languages/p-diff-sync/package.json  |    2 +-
 cli/seed_proto.json                           |   11 +-
 turbo.json                                    |    2 +-
 67 files changed, 13503 insertions(+), 166 deletions(-)
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/.gitignore
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/README.md
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/esbuild.ts
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/Cargo.lock
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/Cargo.toml
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/build.ps1
 create mode 100755 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/build.sh
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/default.nix
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/holochain_version.nix
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/nix/sources.json
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/nix/sources.nix
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/workdir/dna.yaml
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/Cargo.toml
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/errors.rs
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/inputs.rs
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/lib.rs
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/link_adapter/chunked_diffs.rs
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/link_adapter/commit.rs
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/link_adapter/mod.rs
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/link_adapter/pull.rs
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/link_adapter/render.rs
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/link_adapter/revisions.rs
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/link_adapter/snapshots.rs
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/link_adapter/test_graphs.rs
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/link_adapter/tests.rs
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/link_adapter/topo_sort.rs
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/link_adapter/workspace.rs
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/retriever.rs
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/retriever/holochain.rs
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/retriever/mock.rs
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/telepresence/mod.rs
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/telepresence/signal.rs
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/telepresence/status.rs
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/utils.rs
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync_integrity/Cargo.toml
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync_integrity/src/impls.rs
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync_integrity/src/lib.rs
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/common.ts
 create mode 100755 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/download-hc-binaries.sh
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/index.ts
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/package.json
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/pull.ts
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/queue.ts
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/render.ts
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/revisions.ts
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/signals.ts
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/stress.ts
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/telepresence.ts
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/tsconfig.json
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/utils.ts
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/yarn.lock
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/index.ts
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/integration-test.js
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/linksAdapter.ts
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/package.json
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/rollup.config.hc-dna.js
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/telepresenceAdapter.ts
 create mode 100644 bootstrap-languages/p-diff-sync-socket-signaling/tsconfig.json

diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/.gitignore b/bootstrap-languages/p-diff-sync-socket-signaling/.gitignore
new file mode 100644
index 000000000..d302556a5
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/.gitignore
@@ -0,0 +1,19 @@
+.cargo
+target
+hc-dna/workdir/perspective-diff-sync.dna
+hc-dna/zomes/tests/node_modules
+hc-dna/zomes/tests/out.log
+node_modules
+.hc*
+perspect-diff-sync.dna
+*.log
+.turbo
+
+*.js
+*.js.map
+!rollup.config*
+!.dna.js
+!integration-test.js
+
+.ad4m-test
+ad4m-test-*
\ No newline at end of file
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/README.md b/bootstrap-languages/p-diff-sync-socket-signaling/README.md
new file mode 100644
index 000000000..dadc2cd48
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/README.md
@@ -0,0 +1,3 @@
+# Perspective Diff Sync
+
+Git like holochain syncing DNA for sharing of mutation to a shared perspective. 
\ No newline at end of file
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/esbuild.ts b/bootstrap-languages/p-diff-sync-socket-signaling/esbuild.ts
new file mode 100644
index 000000000..e479a51dd
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/esbuild.ts
@@ -0,0 +1,39 @@
+import * as esbuild from "https://deno.land/x/esbuild@v0.17.18/mod.js";
+// Import the WASM build on platforms where running subprocesses is not
+// permitted, such as Deno Deploy, or when running without `--allow-run`.
+// import * as esbuild from "https://deno.land/x/esbuild@v0.17.18/wasm.js";
+
+import { denoPlugins } from "https://deno.land/x/esbuild_deno_loader@0.7.0/mod.ts";
+import { loadSource, resolveUrl } from "./customHttpDownloader.js";
+
+const result = await esbuild.build({
+  plugins: [
+    {
+        name: `buffer-alias`,
+        setup(build) {
+            build.onResolve({ filter: new RegExp(`^buffer$`) }, (args) => {
+                return { path: `https://deno.land/std@0.177.0/node/buffer.ts`, namespace: 'imports' };
+            });
+
+            build.onResolve({filter: /.*/, namespace: 'imports'}, resolveUrl)
+
+            build.onLoad({filter: /.*/, namespace: 'imports'}, (args) => {
+                return loadSource(args)
+            })
+        },
+    },
+    ...denoPlugins()
+  ],
+  entryPoints: ['index.ts'],
+  outfile: 'build/bundle.js',
+  bundle: true,
+  platform: 'node',
+  target: 'deno1.32.4',
+  format: 'esm',
+  globalName: 'perspective.diff.sync.language',
+  charset: 'ascii',
+  legalComments: 'inline'
+});
+console.log(result.outputFiles);
+
+esbuild.stop();
\ No newline at end of file
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/Cargo.lock b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/Cargo.lock
new file mode 100644
index 000000000..7482a52c9
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/Cargo.lock
@@ -0,0 +1,2795 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "addr2line"
+version = "0.17.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b9ecd88a8c8378ca913a680cd98f0f13ac67383d35993f86c90a70e3f137816b"
+dependencies = [
+ "gimli",
+]
+
+[[package]]
+name = "adler"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"
+
+[[package]]
+name = "ahash"
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fcb51a0695d8f838b1ee009b3fbf66bda078cd64590202a864a8f3e8c4315c47"
+dependencies = [
+ "getrandom",
+ "once_cell",
+ "version_check",
+]
+
+[[package]]
+name = "aho-corasick"
+version = "0.7.20"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cc936419f96fa211c1b9166887b38e5e40b19958e5b895be7c1f93adec7071ac"
+dependencies = [
+ "memchr",
+]
+
+[[package]]
+name = "android_system_properties"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "819e7219dbd41043ac279b19830f2efc897156490d7fd6ea916720117ee66311"
+dependencies = [
+ "libc",
+]
+
+[[package]]
+name = "approx"
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+checksum = "cab112f0a86d568ea0e627cc1d6be74a1e9cd55214684db5561995f6dad897c6"
+dependencies = [
+ "num-traits",
+]
+
+[[package]]
+name = "arrayref"
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+checksum = "a4c527152e37cf757a3f78aae5a06fbeefdb07ccc535c980a3208ee3060dd544"
+
+[[package]]
+name = "arrayvec"
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+
+[[package]]
+name = "atty"
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+checksum = "d9b39be18770d11421cdb1b9947a45dd3f37e93092cbf377614828a319d5fee8"
+dependencies = [
+ "hermit-abi",
+ "libc",
+ "winapi",
+]
+
+[[package]]
+name = "autocfg"
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+
+[[package]]
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+dependencies = [
+ "addr2line",
+ "cc",
+ "cfg-if 1.0.0",
+ "libc",
+ "miniz_oxide",
+ "object 0.29.0",
+ "rustc-demangle",
+]
+
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+
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+ "serde",
+]
+
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+ "constant_time_eq",
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+
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+ "syn",
+]
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+ "serde",
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+dependencies = [
+ "camino",
+ "cargo-platform",
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+ "serde_json",
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+name = "windows_i686_gnu"
+version = "0.33.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cab0cf703a96bab2dc0c02c0fa748491294bf9b7feb27e1f4f96340f208ada0e"
+
+[[package]]
+name = "windows_i686_gnu"
+version = "0.42.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fbeae19f6716841636c28d695375df17562ca208b2b7d0dc47635a50ae6c5de7"
+
+[[package]]
+name = "windows_i686_msvc"
+version = "0.33.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8cfdbe89cc9ad7ce618ba34abc34bbb6c36d99e96cae2245b7943cd75ee773d0"
+
+[[package]]
+name = "windows_i686_msvc"
+version = "0.42.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "84c12f65daa39dd2babe6e442988fc329d6243fdce47d7d2d155b8d874862246"
+
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.33.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b4dd9b0c0e9ece7bb22e84d70d01b71c6d6248b81a3c60d11869451b4cb24784"
+
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.42.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bf7b1b21b5362cbc318f686150e5bcea75ecedc74dd157d874d754a2ca44b0ed"
+
+[[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.42.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "09d525d2ba30eeb3297665bd434a54297e4170c7f1a44cad4ef58095b4cd2028"
+
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.33.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ff1e4aa646495048ec7f3ffddc411e1d829c026a2ec62b39da15c1055e406eaa"
+
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.42.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f40009d85759725a34da6d89a94e63d7bdc50a862acf0dbc7c8e488f1edcb6f5"
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/Cargo.toml b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/Cargo.toml
new file mode 100644
index 000000000..208186f1e
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/Cargo.toml
@@ -0,0 +1,11 @@
+[workspace]
+members = [
+  "zomes/perspective_diff_sync",
+  "zomes/perspective_diff_sync_integrity"
+]
+
+[profile.dev]
+opt-level = "z"
+
+[profile.release]
+opt-level = "z"
\ No newline at end of file
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/build.ps1 b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/build.ps1
new file mode 100644
index 000000000..81582cbd3
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/build.ps1
@@ -0,0 +1,2 @@
+cargo build --release --target wasm32-unknown-unknown
+hc dna pack workdir
\ No newline at end of file
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/build.sh b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/build.sh
new file mode 100755
index 000000000..a089cc772
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/build.sh
@@ -0,0 +1,3 @@
+#!/bin/bash
+CARGO_TARGET_DIR=target cargo build --release --target wasm32-unknown-unknown
+hc dna pack workdir
\ No newline at end of file
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/default.nix b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/default.nix
new file mode 100644
index 000000000..33f97a914
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/default.nix
@@ -0,0 +1,14 @@
+let
+  holonixPath = (import ./nix/sources.nix).holonix; # points to the current state of the Holochain repository
+  holonix = import (holonixPath) {
+    holochainVersionId = "main";
+  };
+  nixpkgs = holonix.pkgs;
+in nixpkgs.mkShell {
+  inputsFrom = [ holonix.main ];
+  packages = with nixpkgs; [
+    binaryen
+    nodejs-16_x
+    swiProlog
+  ];
+}
\ No newline at end of file
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/holochain_version.nix b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/holochain_version.nix
new file mode 100644
index 000000000..acfe9651f
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/holochain_version.nix
@@ -0,0 +1,20 @@
+# This file was generated with the following command:
+# update-holochain-versions --git-src=revision:holochain-0.0.161 --lair-version-req=~0.2 --output-file=holochain_version.nix
+# For usage instructions please visit https://github.com/holochain/holochain-nixpkgs/#readme
+
+{
+    url = "https://github.com/holochain/holochain";
+    rev = "holochain-0.2.2";
+    sha256 = "sha256-xp1DTVrhGZc1CZr6LvBFZZhoOUbUPpg3/mWOj4DDXjI=";
+    cargoLock = {
+        outputHashes = {
+        };
+    };
+
+    binsFilter = [
+        "holochain"
+        "hc"
+        "kitsune-p2p-proxy"
+        "kitsune-p2p-tx2-proxy"
+    ];
+}
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/nix/sources.json b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/nix/sources.json
new file mode 100644
index 000000000..451563814
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/nix/sources.json
@@ -0,0 +1,14 @@
+{
+    "holonix": {
+        "branch": "main",
+        "description": "NixOS && Holochain",
+        "homepage": "",
+        "owner": "holochain",
+        "repo": "holonix",
+        "rev": "241c1754a37881f51f2f33921a2777b38c34fa24",
+        "sha256": "sha256:0zaa477kyzpsrcc3nk1jznp4gchwm4pk5p37pwkq6mjhiizcxshy",
+        "type": "tarball",
+        "url": "https://github.com/holochain/holonix/archive/241c1754a37881f51f2f33921a2777b38c34fa24.tar.gz",
+        "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
+    }
+}
\ No newline at end of file
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/nix/sources.nix b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/nix/sources.nix
new file mode 100644
index 000000000..fe2468872
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/nix/sources.nix
@@ -0,0 +1,174 @@
+# This file has been generated by Niv.
+
+let
+
+  #
+  # The fetchers. fetch_<type> fetches specs of type <type>.
+  #
+
+  fetch_file = pkgs: name: spec:
+    let
+      name' = sanitizeName name + "-src";
+    in
+      if spec.builtin or true then
+        builtins_fetchurl { inherit (spec) url sha256; name = name'; }
+      else
+        pkgs.fetchurl { inherit (spec) url sha256; name = name'; };
+
+  fetch_tarball = pkgs: name: spec:
+    let
+      name' = sanitizeName name + "-src";
+    in
+      if spec.builtin or true then
+        builtins_fetchTarball { name = name'; inherit (spec) url sha256; }
+      else
+        pkgs.fetchzip { name = name'; inherit (spec) url sha256; };
+
+  fetch_git = name: spec:
+    let
+      ref =
+        if spec ? ref then spec.ref else
+          if spec ? branch then "refs/heads/${spec.branch}" else
+            if spec ? tag then "refs/tags/${spec.tag}" else
+              abort "In git source '${name}': Please specify `ref`, `tag` or `branch`!";
+    in
+      builtins.fetchGit { url = spec.repo; inherit (spec) rev; inherit ref; };
+
+  fetch_local = spec: spec.path;
+
+  fetch_builtin-tarball = name: throw
+    ''[${name}] The niv type "builtin-tarball" is deprecated. You should instead use `builtin = true`.
+        $ niv modify ${name} -a type=tarball -a builtin=true'';
+
+  fetch_builtin-url = name: throw
+    ''[${name}] The niv type "builtin-url" will soon be deprecated. You should instead use `builtin = true`.
+        $ niv modify ${name} -a type=file -a builtin=true'';
+
+  #
+  # Various helpers
+  #
+
+  # https://github.com/NixOS/nixpkgs/pull/83241/files#diff-c6f540a4f3bfa4b0e8b6bafd4cd54e8bR695
+  sanitizeName = name:
+    (
+      concatMapStrings (s: if builtins.isList s then "-" else s)
+        (
+          builtins.split "[^[:alnum:]+._?=-]+"
+            ((x: builtins.elemAt (builtins.match "\\.*(.*)" x) 0) name)
+        )
+    );
+
+  # The set of packages used when specs are fetched using non-builtins.
+  mkPkgs = sources: system:
+    let
+      sourcesNixpkgs =
+        import (builtins_fetchTarball { inherit (sources.nixpkgs) url sha256; }) { inherit system; };
+      hasNixpkgsPath = builtins.any (x: x.prefix == "nixpkgs") builtins.nixPath;
+      hasThisAsNixpkgsPath = <nixpkgs> == ./.;
+    in
+      if builtins.hasAttr "nixpkgs" sources
+      then sourcesNixpkgs
+      else if hasNixpkgsPath && ! hasThisAsNixpkgsPath then
+        import <nixpkgs> {}
+      else
+        abort
+          ''
+            Please specify either <nixpkgs> (through -I or NIX_PATH=nixpkgs=...) or
+            add a package called "nixpkgs" to your sources.json.
+          '';
+
+  # The actual fetching function.
+  fetch = pkgs: name: spec:
+
+    if ! builtins.hasAttr "type" spec then
+      abort "ERROR: niv spec ${name} does not have a 'type' attribute"
+    else if spec.type == "file" then fetch_file pkgs name spec
+    else if spec.type == "tarball" then fetch_tarball pkgs name spec
+    else if spec.type == "git" then fetch_git name spec
+    else if spec.type == "local" then fetch_local spec
+    else if spec.type == "builtin-tarball" then fetch_builtin-tarball name
+    else if spec.type == "builtin-url" then fetch_builtin-url name
+    else
+      abort "ERROR: niv spec ${name} has unknown type ${builtins.toJSON spec.type}";
+
+  # If the environment variable NIV_OVERRIDE_${name} is set, then use
+  # the path directly as opposed to the fetched source.
+  replace = name: drv:
+    let
+      saneName = stringAsChars (c: if isNull (builtins.match "[a-zA-Z0-9]" c) then "_" else c) name;
+      ersatz = builtins.getEnv "NIV_OVERRIDE_${saneName}";
+    in
+      if ersatz == "" then drv else
+        # this turns the string into an actual Nix path (for both absolute and
+        # relative paths)
+        if builtins.substring 0 1 ersatz == "/" then /. + ersatz else /. + builtins.getEnv "PWD" + "/${ersatz}";
+
+  # Ports of functions for older nix versions
+
+  # a Nix version of mapAttrs if the built-in doesn't exist
+  mapAttrs = builtins.mapAttrs or (
+    f: set: with builtins;
+    listToAttrs (map (attr: { name = attr; value = f attr set.${attr}; }) (attrNames set))
+  );
+
+  # https://github.com/NixOS/nixpkgs/blob/0258808f5744ca980b9a1f24fe0b1e6f0fecee9c/lib/lists.nix#L295
+  range = first: last: if first > last then [] else builtins.genList (n: first + n) (last - first + 1);
+
+  # https://github.com/NixOS/nixpkgs/blob/0258808f5744ca980b9a1f24fe0b1e6f0fecee9c/lib/strings.nix#L257
+  stringToCharacters = s: map (p: builtins.substring p 1 s) (range 0 (builtins.stringLength s - 1));
+
+  # https://github.com/NixOS/nixpkgs/blob/0258808f5744ca980b9a1f24fe0b1e6f0fecee9c/lib/strings.nix#L269
+  stringAsChars = f: s: concatStrings (map f (stringToCharacters s));
+  concatMapStrings = f: list: concatStrings (map f list);
+  concatStrings = builtins.concatStringsSep "";
+
+  # https://github.com/NixOS/nixpkgs/blob/8a9f58a375c401b96da862d969f66429def1d118/lib/attrsets.nix#L331
+  optionalAttrs = cond: as: if cond then as else {};
+
+  # fetchTarball version that is compatible between all the versions of Nix
+  builtins_fetchTarball = { url, name ? null, sha256 }@attrs:
+    let
+      inherit (builtins) lessThan nixVersion fetchTarball;
+    in
+      if lessThan nixVersion "1.12" then
+        fetchTarball ({ inherit url; } // (optionalAttrs (!isNull name) { inherit name; }))
+      else
+        fetchTarball attrs;
+
+  # fetchurl version that is compatible between all the versions of Nix
+  builtins_fetchurl = { url, name ? null, sha256 }@attrs:
+    let
+      inherit (builtins) lessThan nixVersion fetchurl;
+    in
+      if lessThan nixVersion "1.12" then
+        fetchurl ({ inherit url; } // (optionalAttrs (!isNull name) { inherit name; }))
+      else
+        fetchurl attrs;
+
+  # Create the final "sources" from the config
+  mkSources = config:
+    mapAttrs (
+      name: spec:
+        if builtins.hasAttr "outPath" spec
+        then abort
+          "The values in sources.json should not have an 'outPath' attribute"
+        else
+          spec // { outPath = replace name (fetch config.pkgs name spec); }
+    ) config.sources;
+
+  # The "config" used by the fetchers
+  mkConfig =
+    { sourcesFile ? if builtins.pathExists ./sources.json then ./sources.json else null
+    , sources ? if isNull sourcesFile then {} else builtins.fromJSON (builtins.readFile sourcesFile)
+    , system ? builtins.currentSystem
+    , pkgs ? mkPkgs sources system
+    }: rec {
+      # The sources, i.e. the attribute set of spec name to spec
+      inherit sources;
+
+      # The "pkgs" (evaluated nixpkgs) to use for e.g. non-builtin fetchers
+      inherit pkgs;
+    };
+
+in
+mkSources (mkConfig {}) // { __functor = _: settings: mkSources (mkConfig settings); }
\ No newline at end of file
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/workdir/dna.yaml b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/workdir/dna.yaml
new file mode 100644
index 000000000..8a41b760b
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/workdir/dna.yaml
@@ -0,0 +1,21 @@
+---
+manifest_version: 1
+name: "perspective-diff-sync"
+integrity:
+  network_seed: 00000000-0000-0000-0000-000000000000
+  properties:  {
+    "enforce_spam_limit": 20,
+    "max_chunk_interval": 3599000,
+    "active_agent_duration_s": 300,
+    "enable_signals": true
+  }
+  origin_time: 2022-02-11T23:05:19.470323Z
+  zomes:
+    - name: perspective_diff_sync_integrity
+      bundled: ../target/wasm32-unknown-unknown/release/perspective_diff_sync_integrity.wasm
+coordinator:
+  zomes:
+    - name: perspective_diff_sync
+      bundled: ../target/wasm32-unknown-unknown/release/perspective_diff_sync.wasm
+      dependencies:
+        - name: perspective_diff_sync_integrity
\ No newline at end of file
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/Cargo.toml b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/Cargo.toml
new file mode 100644
index 000000000..cfda8d8c6
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/Cargo.toml
@@ -0,0 +1,28 @@
+[package]
+authors = ["josh@junto.foundation"]
+edition = "2018"
+name = "perspective_diff_sync"
+version = "0.0.1"
+
+[lib]
+crate-type = ["cdylib", "rlib"]
+name = "perspective_diff_sync"
+
+[dependencies]
+derive_more = "0"
+serde = "1"
+lazy_static = "*"
+chrono = { version = "0.4.22", default-features = false, features = ["clock", "std", "oldtime", "serde"] }
+thiserror = "1.0.20"
+petgraph = "0.6.2"
+maplit = "1.0.2"
+graphviz-rust = "0.2.1"
+dot-structures = "0.1.0"
+itertools = "0.10.3"
+perspective_diff_sync_integrity = { path = "../perspective_diff_sync_integrity" }
+sha2 = "0.10.5"
+hdk = "0.2.2"
+holo_hash = "0.2.2"
+
+[features]
+test = []
\ No newline at end of file
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/errors.rs b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/errors.rs
new file mode 100644
index 000000000..83eb919ab
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/errors.rs
@@ -0,0 +1,25 @@
+use hdk::prelude::*;
+use holo_hash::error::HoloHashError;
+use std::convert::Infallible;
+
+#[derive(thiserror::Error, Debug)]
+pub enum SocialContextError {
+    #[error(transparent)]
+    Serialization(#[from] SerializedBytesError),
+    #[error(transparent)]
+    Infallible(#[from] Infallible),
+    #[error(transparent)]
+    EntryError(#[from] EntryError),
+    #[error(transparent)]
+    Wasm(#[from] WasmError),
+    #[error(transparent)]
+    HoloHashError(#[from] HoloHashError),
+    #[error("Internal Error. Error: {0}")]
+    InternalError(&'static str),
+    #[error("No common ancestor found")]
+    NoCommonAncestorFound,
+    #[error("No did found")]
+    NoDidFound,
+}
+
+pub type SocialContextResult<T> = Result<T, SocialContextError>;
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/inputs.rs b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/inputs.rs
new file mode 100644
index 000000000..403cc7f92
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/inputs.rs
@@ -0,0 +1,29 @@
+use hdk::prelude::*;
+use perspective_diff_sync_integrity::PerspectiveExpression;
+
+use crate::Hash;
+
+#[derive(Serialize, Deserialize, Clone, SerializedBytes, Debug, PartialEq, Eq, Hash)]
+pub struct ExpressionProof {
+    pub signature: String,
+    pub key: String,
+}
+
+#[derive(Serialize, Deserialize, Clone, SerializedBytes, Debug, PartialEq, Eq, Hash)]
+pub struct Triple {
+    pub source: Option<String>,
+    pub target: Option<String>,
+    pub predicate: Option<String>,
+}
+
+#[derive(Serialize, Deserialize, Clone, SerializedBytes, Debug)]
+pub struct SignalData {
+    pub remote_agent_did: String,
+    pub payload: PerspectiveExpression,
+}
+
+#[derive(Serialize, Deserialize, Clone, SerializedBytes, Debug)]
+pub struct PullArguments {
+    pub hash: Hash,
+    pub is_scribe: bool,
+}
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/lib.rs b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/lib.rs
new file mode 100644
index 000000000..e837a592b
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/lib.rs
@@ -0,0 +1,195 @@
+#[macro_use]
+extern crate lazy_static;
+
+use hdk::prelude::*;
+use inputs::PullArguments;
+use lazy_static::lazy_static;
+
+use perspective_diff_sync_integrity::{
+    HashBroadcast, OnlineAgent, OnlineAgentAndAction, Perspective, PerspectiveDiff,
+    PerspectiveExpression, PullResult,
+};
+
+mod errors;
+mod inputs;
+mod link_adapter;
+mod retriever;
+mod telepresence;
+mod utils;
+
+#[macro_use]
+extern crate maplit;
+
+pub type Hash = HoloHash<holo_hash::hash_type::Action>;
+
+#[hdk_extern]
+fn init(_: ()) -> ExternResult<InitCallbackResult> {
+    let mut functions = BTreeSet::new();
+    functions.insert((zome_info()?.name, "get_online_status".into()));
+    //TODO; is this next function needed?
+    functions.insert((zome_info()?.name, "recv_remote_signal".into()));
+
+    let functions: GrantedFunctions = GrantedFunctions::Listed(functions);
+
+    create_cap_grant(CapGrantEntry {
+        tag: "".into(),
+        // empty access converts to unrestricted
+        access: ().into(),
+        functions,
+    })?;
+    link_adapter::commit::add_active_agent_link::<retriever::HolochainRetreiver>()
+        .map_err(|error| utils::err(&format!("{}", error)))?;
+    Ok(InitCallbackResult::Pass)
+}
+
+/// LinkLanguage implementation
+
+#[hdk_extern]
+pub fn commit(diff: PerspectiveDiff) -> ExternResult<Hash> {
+    link_adapter::commit::commit::<retriever::HolochainRetreiver>(diff)
+        .map_err(|error| utils::err(&format!("{}", error)))
+}
+
+#[hdk_extern]
+pub fn current_revision(_: ()) -> ExternResult<Option<Hash>> {
+    link_adapter::revisions::current_revision::<retriever::HolochainRetreiver>()
+        .map_err(|error| utils::err(&format!("{}", error)))
+        .map(|val| val.map(|val| val.hash))
+}
+
+#[hdk_extern]
+pub fn sync(_: ()) -> ExternResult<Option<Hash>> {
+    link_adapter::commit::broadcast_current::<retriever::HolochainRetreiver>()
+        .map_err(|error| utils::err(&format!("{}", error)))
+}
+
+#[hdk_extern]
+pub fn get_broadcast_payload(_: ()) -> ExternResult<Option<HashBroadcast>> {
+    link_adapter::commit::get_broadcast_payload::<retriever::HolochainRetreiver>()
+        .map_err(|error| utils::err(&format!("{}", error)))
+}
+
+#[hdk_extern]
+pub fn pull(args: PullArguments) -> ExternResult<PullResult> {
+    link_adapter::pull::pull::<retriever::HolochainRetreiver>(true, args.hash, args.is_scribe)
+        .map_err(|error| utils::err(&format!("{}", error)))
+}
+
+#[hdk_extern]
+pub fn render(_: ()) -> ExternResult<Perspective> {
+    link_adapter::render::render::<retriever::HolochainRetreiver>()
+        .map_err(|error| utils::err(&format!("{}", error)))
+}
+
+#[hdk_extern]
+pub fn update_current_revision(_hash: Hash) -> ExternResult<()> {
+    #[cfg(feature = "test")]
+    {
+        link_adapter::revisions::update_current_revision::<retriever::HolochainRetreiver>(
+            _hash,
+            utils::get_now().unwrap(),
+        )
+        .map_err(|err| utils::err(&format!("{}", err)))?;
+    }
+    Ok(())
+}
+
+/// Signal handling
+
+#[hdk_extern]
+fn recv_remote_signal(signal: SerializedBytes) -> ExternResult<()> {
+    //Check if its a normal diff expression signal
+    match HashBroadcast::try_from(signal.clone()) {
+        Ok(broadcast) => {
+            debug!("Received broadcast: {:?} in HOLOCHAIN", broadcast);
+            link_adapter::pull::handle_broadcast::<retriever::HolochainRetreiver>(broadcast)
+                .map_err(|err| utils::err(&format!("{}", err)))?;
+        }
+        //Check if its a broadcast message
+        Err(_) => match PerspectiveExpression::try_from(signal.clone()) {
+            Ok(sig) => emit_signal(sig)?,
+            //Check if its an online ping
+            Err(_) => return Err(utils::err(&format!("Signal not recognized: {:?}", signal))),
+        },
+    };
+    Ok(())
+}
+
+#[hdk_extern]
+pub fn handle_broadcast(broadcast: HashBroadcast) -> ExternResult<()> {
+    link_adapter::pull::handle_broadcast::<retriever::HolochainRetreiver>(broadcast)
+        .map_err(|err| utils::err(&format!("{}", err)))?;
+    Ok(())
+}
+
+// Telepresence implementation
+
+#[hdk_extern]
+pub fn set_online_status(status: PerspectiveExpression) -> ExternResult<()> {
+    telepresence::status::set_online_status(status)
+        .map_err(|error| utils::err(&format!("{}", error)))?;
+    Ok(())
+}
+
+#[hdk_extern]
+pub fn create_did_pub_key_link(did: String) -> ExternResult<()> {
+    telepresence::status::create_did_pub_key_link(did)
+        .map_err(|error| utils::err(&format!("{}", error)))?;
+    Ok(())
+}
+
+#[hdk_extern]
+pub fn get_online_agents(_: ()) -> ExternResult<Vec<OnlineAgent>> {
+    let res = telepresence::status::get_online_agents()
+        .map_err(|error| utils::err(&format!("{}", error)))?;
+    Ok(res)
+}
+
+#[hdk_extern]
+pub fn get_online_status(_: ()) -> ExternResult<OnlineAgentAndAction> {
+    let res = telepresence::status::get_online_status()
+        .map_err(|error| utils::err(&format!("{}", error)))?;
+    Ok(res)
+}
+
+#[hdk_extern]
+pub fn get_agents_status(agent: AgentPubKey) -> ExternResult<Option<OnlineAgent>> {
+    let res = telepresence::status::get_agents_status(agent);
+    Ok(res)
+}
+
+#[hdk_extern]
+pub fn send_signal(signal_data: inputs::SignalData) -> ExternResult<PerspectiveExpression> {
+    let res = telepresence::signal::send_signal(signal_data)
+        .map_err(|error| utils::err(&format!("{}", error)))?;
+    Ok(res)
+}
+
+#[hdk_extern]
+pub fn send_broadcast(data: PerspectiveExpression) -> ExternResult<PerspectiveExpression> {
+    let res = telepresence::signal::send_broadcast(data)
+        .map_err(|error| utils::err(&format!("{}", error)))?;
+    Ok(res)
+}
+
+#[hdk_extern]
+pub fn get_active_agents(_: ()) -> ExternResult<Vec<AgentPubKey>> {
+    let res = retriever::holochain::get_active_agents()
+        .map_err(|error| utils::err(&format!("{}", error)))?;
+    Ok(res)
+}
+
+#[hdk_extern]
+pub fn get_others(_: ()) -> ExternResult<Vec<String>> {
+    let res =
+        telepresence::status::get_others().map_err(|error| utils::err(&format!("{}", error)))?;
+    Ok(res)
+}
+
+//not loading from DNA properies since dna zome properties is always null for some reason
+lazy_static! {
+    pub static ref ACTIVE_AGENT_DURATION: chrono::Duration = chrono::Duration::seconds(3600);
+    pub static ref ENABLE_SIGNALS: bool = true;
+    pub static ref SNAPSHOT_INTERVAL: usize = 100;
+    pub static ref CHUNK_SIZE: u16 = 10000;
+}
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/link_adapter/chunked_diffs.rs b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/link_adapter/chunked_diffs.rs
new file mode 100644
index 000000000..5a6912dc2
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/link_adapter/chunked_diffs.rs
@@ -0,0 +1,207 @@
+use hdk::prelude::*;
+use perspective_diff_sync_integrity::{
+    EntryTypes, LinkExpression, PerspectiveDiff,
+};
+
+use crate::{Hash, CHUNK_SIZE};
+use crate::errors::{SocialContextResult};
+use crate::retriever::{PerspectiveDiffRetreiver};
+
+#[derive(Clone)]
+pub struct ChunkedDiffs {
+    max_changes_per_chunk: u16,
+    pub chunks: Vec<PerspectiveDiff>
+}
+
+impl ChunkedDiffs {
+    pub fn new(max: u16) -> Self {
+        Self {
+            max_changes_per_chunk: max,
+            chunks: vec![PerspectiveDiff::new()],
+        }
+    }
+
+    pub fn add_additions(&mut self, links: Vec<LinkExpression>) {
+        let mut reverse_links = links.into_iter().rev().collect::<Vec<_>>();
+        while reverse_links.len() > 0 {
+            let len = self.chunks.len();
+            let current_chunk = self.chunks.get_mut(len-1).expect("must have at least one");
+    
+            while current_chunk.total_diff_number() < self.max_changes_per_chunk.into() && reverse_links.len() > 0 {
+                current_chunk.additions.push(reverse_links.pop().unwrap());
+            }
+    
+            if reverse_links.len() > 0 {
+                self.chunks.push(PerspectiveDiff::new())
+            }
+        }
+    }
+
+    pub fn add_removals(&mut self, links: Vec<LinkExpression>) {
+        let mut reverse_links = links.into_iter().rev().collect::<Vec<_>>();
+        while reverse_links.len() > 0 {
+            let len = self.chunks.len();
+            let current_chunk = self.chunks.get_mut(len-1).expect("must have at least one");
+
+            while current_chunk.total_diff_number() < self.max_changes_per_chunk.into() && reverse_links.len() > 0 {
+                current_chunk.removals.push(reverse_links.pop().unwrap());
+            }
+    
+            if reverse_links.len() > 0 {
+                self.chunks.push(PerspectiveDiff::new())
+            }
+        }
+    }
+
+    pub fn into_entries<Retreiver: PerspectiveDiffRetreiver>(self) -> SocialContextResult<Vec<Hash>> {
+        debug!("ChunkedDiffs.into_entries()");
+        self.chunks
+            .into_iter()
+            .map(|chunk_diff| {
+                debug!("ChunkedDiffs writing chunk of size: {}", chunk_diff.total_diff_number());
+                Retreiver::create_entry(EntryTypes::PerspectiveDiff(chunk_diff))
+            })
+            .collect() 
+    }
+
+    pub fn from_entries<Retreiver: PerspectiveDiffRetreiver>(hashes: Vec<Hash>) -> SocialContextResult<Self> {
+        let mut diffs = Vec::new();
+        for hash in hashes.into_iter() {
+            diffs.push(Retreiver::get::<PerspectiveDiff>(hash)?);
+        }
+
+        Ok(ChunkedDiffs {
+            max_changes_per_chunk: *CHUNK_SIZE,
+            chunks: diffs,
+        })
+    }
+
+    pub fn into_aggregated_diff(self) -> PerspectiveDiff {
+        self.chunks.into_iter().reduce(|accum, item| {
+            let mut temp = accum.clone();
+            temp.additions.append(&mut item.additions.clone());
+            temp.removals.append(&mut item.removals.clone());
+            temp
+        })
+        .unwrap_or(PerspectiveDiff::new())
+    }
+}
+
+
+#[cfg(test)]
+mod tests {
+    use super::ChunkedDiffs;
+    use crate::utils::create_link_expression;
+    use crate::retriever::{GLOBAL_MOCKED_GRAPH, MockPerspectiveGraph};
+
+    #[test]
+    fn can_chunk() {
+        let mut chunks = ChunkedDiffs::new(5);
+
+        chunks.add_additions(vec![
+            create_link_expression("a", "1"),
+            create_link_expression("a", "2"),
+            create_link_expression("a", "3"),
+        ]);
+
+        assert_eq!(chunks.chunks.len(), 1);
+
+        chunks.add_additions(vec![
+            create_link_expression("a", "4"),
+            create_link_expression("a", "5"),
+            create_link_expression("a", "6"),
+        ]);
+
+        assert_eq!(chunks.chunks.len(), 2);
+
+        chunks.add_removals(vec![
+            create_link_expression("a", "1"),
+            create_link_expression("a", "2"),
+            create_link_expression("a", "3"),
+            create_link_expression("a", "4"),
+            create_link_expression("a", "5"),
+            create_link_expression("a", "6"),
+        ]);
+
+        assert_eq!(chunks.chunks.len(), 3);
+    }
+
+    #[test]
+    fn can_aggregate() {
+        let mut chunks = ChunkedDiffs::new(5);
+
+        let _a1 = create_link_expression("a", "1");
+        let _a2 = create_link_expression("a", "2");
+        let _r1 = create_link_expression("r", "1");
+        let _r2 = create_link_expression("r", "2");
+        let _r3 = create_link_expression("r", "3");
+        let _r4 = create_link_expression("r", "4");
+
+
+        chunks.add_additions(vec![_a1.clone()]);
+        chunks.add_additions(vec![_a2.clone()]);
+        chunks.add_removals(vec![_r1.clone(),_r2.clone(),_r3.clone(),_r4.clone()]);
+
+        assert_eq!(chunks.chunks.len(), 2);
+
+        let diff = chunks.into_aggregated_diff();
+
+        assert_eq!(diff.additions, vec![_a1,_a2]);
+        assert_eq!(diff.removals, vec![_r1,_r2,_r3,_r4]);
+    }
+
+    #[test]
+    fn can_chunk_big_diffs() {
+        let mut chunks = ChunkedDiffs::new(500);
+
+        let mut big_diff_add = Vec::new();
+        for i in 0..5000 {
+            big_diff_add.push(create_link_expression("a", &format!("{}", i)));
+        }
+        chunks.add_additions(big_diff_add);
+
+        let mut big_diff_remove = Vec::new();
+        for i in 0..800 {
+            big_diff_remove.push(create_link_expression("a", &format!("{}", i)));
+        }
+        chunks.add_removals(big_diff_remove);
+
+        let mut big_diff_add = Vec::new();
+        for i in 0..213 {
+            big_diff_add.push(create_link_expression("a", &format!("{}", i)));
+        }
+        chunks.add_additions(big_diff_add);
+
+        assert_eq!(chunks.chunks.len(), 13);
+        for i in 0..12 {
+            assert_eq!(chunks.chunks[i].total_diff_number(), 500);
+        }
+        assert_eq!(chunks.chunks[12].total_diff_number(), 13);
+    }
+
+    #[test]
+    fn can_write_and_read_entries() {
+        fn update() {
+            let mut graph = GLOBAL_MOCKED_GRAPH.lock().unwrap();
+            *graph = MockPerspectiveGraph::from_dot("digraph{}").expect("can create mock graph from empty dot");
+        }
+        update();
+
+        let mut chunks = ChunkedDiffs::new(500);
+
+        let mut big_diff_add = Vec::new();
+        for i in 0..5000 {
+            big_diff_add.push(create_link_expression("a", &format!("{}", i)));
+        }
+        chunks.add_additions(big_diff_add);
+
+        assert_eq!(chunks.chunks.len(), 10);
+
+        let chunks_clone = chunks.clone();
+        let hashes = chunks.into_entries::<MockPerspectiveGraph>().expect("into_entries does not error");
+        let read_chunks = ChunkedDiffs::from_entries::<MockPerspectiveGraph>(hashes).expect("from_entries does not error");
+
+        assert_eq!(read_chunks.chunks.len(), 10);
+        assert_eq!(format!("{:?}", read_chunks.chunks), format!("{:?}", chunks_clone.chunks));
+    }
+}
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/link_adapter/commit.rs b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/link_adapter/commit.rs
new file mode 100644
index 000000000..6dd6f9392
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/link_adapter/commit.rs
@@ -0,0 +1,171 @@
+//use chrono::Timelike;
+use hdk::prelude::*;
+use perspective_diff_sync_integrity::{
+    EntryTypes, HashBroadcast, LinkTypes, PerspectiveDiff, PerspectiveDiffEntryReference,
+};
+
+use crate::errors::SocialContextResult;
+use crate::link_adapter::revisions::{current_revision, update_current_revision};
+use crate::link_adapter::snapshots::generate_snapshot;
+use crate::retriever::holochain::{get_active_agent_anchor, get_active_agents};
+use crate::retriever::PerspectiveDiffRetreiver;
+use crate::telepresence::status::get_my_did;
+use crate::utils::get_now;
+use crate::{Hash, ENABLE_SIGNALS, SNAPSHOT_INTERVAL};
+
+pub fn commit<Retriever: PerspectiveDiffRetreiver>(
+    diff: PerspectiveDiff,
+) -> SocialContextResult<HoloHash<holo_hash::hash_type::Action>> {
+    debug!("===PerspectiveDiffSync.commit(): Function start");
+    let now_fn_start = get_now()?.time();
+    let current_revision = current_revision::<Retriever>()?;
+
+    let mut entries_since_snapshot = 0;
+    if current_revision.is_some() {
+        let current = Retriever::get::<PerspectiveDiffEntryReference>(
+            current_revision.clone().unwrap().hash,
+        )?;
+        entries_since_snapshot = current.diffs_since_snapshot;
+    };
+    debug!(
+        "===PerspectiveDiffSync.commit(): Entries since snapshot: {:#?}",
+        entries_since_snapshot
+    );
+    //Add one since we are comitting an entry here
+    entries_since_snapshot += 1;
+
+    let create_snapshot_here = if entries_since_snapshot >= *SNAPSHOT_INTERVAL {
+        entries_since_snapshot = 0;
+        true
+    } else {
+        false
+    };
+
+    let now = get_now()?.time();
+    let diff_entry_create = Retriever::create_entry(EntryTypes::PerspectiveDiff(diff.clone()))?;
+    let diff_entry_ref_entry = PerspectiveDiffEntryReference {
+        diff: diff_entry_create.clone(),
+        parents: current_revision.map(|val| vec![val.hash]),
+        diffs_since_snapshot: entries_since_snapshot,
+    };
+    let diff_entry_reference = Retriever::create_entry(EntryTypes::PerspectiveDiffEntryReference(
+        diff_entry_ref_entry.clone(),
+    ))?;
+    let after = get_now()?.time();
+    // debug!(
+    //     "===PerspectiveDiffSync.commit(): Created diff entry ref: {:#?}",
+    //     diff_entry_reference
+    // );
+    debug!(
+        "===PerspectiveDiffSync.commit() - Profiling: Took {} to create a PerspectiveDiff",
+        (after - now).num_milliseconds()
+    );
+
+    if create_snapshot_here {
+        //fetch all the diff's, we need a new function which will traverse graph and then return + diffs + next found snapshot
+        //create new snapshot linked from above diff_entry_reference
+        let snapshot = generate_snapshot(diff_entry_reference.clone())?;
+
+        let now = get_now()?.time();
+        Retriever::create_entry(EntryTypes::Snapshot(snapshot.clone()))?;
+        create_link(
+            hash_entry(diff_entry_ref_entry.clone())?,
+            hash_entry(snapshot)?,
+            LinkTypes::Snapshot,
+            LinkTag::new("snapshot"),
+        )?;
+        let after = get_now()?.time();
+        debug!("===PerspectiveDiffSync.commit() - Profiling: Took {} to create snapshot entry and link", (after - now).num_milliseconds());
+    };
+
+    let now = get_now()?;
+    let now_profile = get_now()?.time();
+    //update_latest_revision::<Retriever>(diff_entry_reference.clone(), now.clone())?;
+    let after = get_now()?.time();
+    debug!(
+        "===PerspectiveDiffSync.commit() - Profiling: Took {} to update the latest revision",
+        (after - now_profile).num_milliseconds()
+    );
+    update_current_revision::<Retriever>(diff_entry_reference.clone(), now)?;
+
+    // if *ENABLE_SIGNALS {
+    //     // let signal_data = PerspectiveDiffReference {
+    //     //     diff,
+    //     //     reference: diff_entry_ref_entry,
+    //     //     reference_hash: diff_entry_reference.clone(),
+    //     // };
+    //     // send_revision_signal(signal_data)?;
+    //     broadcast_current::<Retriever>()?;
+    // };
+
+    let after_fn_end = get_now()?.time();
+    debug!(
+        "===PerspectiveDiffSync.commit() - Profiling: Took {} to complete whole commit function",
+        (after_fn_end - now_fn_start).num_milliseconds()
+    );
+    Ok(diff_entry_reference)
+}
+
+pub fn add_active_agent_link<Retriever: PerspectiveDiffRetreiver>() -> SocialContextResult<()> {
+    debug!("===PerspectiveDiffSync.add_active_agent_link(): Function start");
+    let now_fn_start = get_now()?.time();
+    let agent_root_entry = get_active_agent_anchor();
+    let _agent_root_entry_action =
+        Retriever::create_entry(EntryTypes::Anchor(agent_root_entry.clone()))?;
+
+    let agent = agent_info()?.agent_initial_pubkey;
+    create_link(
+        hash_entry(agent_root_entry)?,
+        agent,
+        LinkTypes::Index,
+        LinkTag::new("active_agent"),
+    )?;
+    let after_fn_end = get_now()?.time();
+    debug!("===PerspectiveDiffSync.add_active_agent_link() - Profiling: Took {} to complete whole add_active_agent_link()", (after_fn_end - now_fn_start).num_milliseconds());
+    Ok(())
+}
+
+pub fn broadcast_current<Retriever: PerspectiveDiffRetreiver>() -> SocialContextResult<Option<Hash>>
+{
+    //debug!("Running broadcast_current");
+    let current = current_revision::<Retriever>()?;
+    //debug!("Current revision: {:#?}", current);
+
+    if current.is_some() {
+        let current_revision = current.clone().unwrap();
+        let entry_ref =
+            Retriever::get::<PerspectiveDiffEntryReference>(current_revision.hash.clone())?;
+        let diff = Retriever::get::<PerspectiveDiff>(entry_ref.diff.clone())?;
+
+        let signal_data = HashBroadcast {
+            reference: entry_ref,
+            reference_hash: current_revision.hash.clone(),
+            diff,
+            broadcast_author: get_my_did()?.unwrap(),
+        };
+
+        let recent_agents = get_active_agents()?;
+        //debug!("Recent agents: {:#?}", recent_agents);
+        remote_signal(signal_data.get_sb()?, recent_agents.clone())?;
+    };
+    Ok(current.map(|rev| rev.hash))
+}
+
+pub fn get_broadcast_payload<Retriever: PerspectiveDiffRetreiver>() -> SocialContextResult<Option<HashBroadcast>> {
+    match current_revision::<Retriever>()? {
+        Some(current) => {
+            let current_revision = current;
+            let entry_ref =
+                Retriever::get::<PerspectiveDiffEntryReference>(current_revision.hash.clone())?;
+            let diff = Retriever::get::<PerspectiveDiff>(entry_ref.diff.clone())?;
+
+            Ok(Some(HashBroadcast {
+                reference: entry_ref,
+                reference_hash: current_revision.hash.clone(),
+                diff,
+                broadcast_author: get_my_did()?.unwrap(),
+            }))
+        },
+        None => Ok(None)
+    }
+}
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/link_adapter/mod.rs b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/link_adapter/mod.rs
new file mode 100644
index 000000000..385f55db2
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/link_adapter/mod.rs
@@ -0,0 +1,10 @@
+pub(crate) mod chunked_diffs;
+pub(crate) mod commit;
+pub(crate) mod pull;
+pub(crate) mod render;
+pub(crate) mod revisions;
+pub(crate) mod snapshots;
+pub(crate) mod test_graphs;
+pub(crate) mod tests;
+pub(crate) mod topo_sort;
+pub(crate) mod workspace;
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/link_adapter/pull.rs b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/link_adapter/pull.rs
new file mode 100644
index 000000000..9059b9b32
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/link_adapter/pull.rs
@@ -0,0 +1,846 @@
+use hdk::prelude::*;
+use perspective_diff_sync_integrity::{
+    EntryTypes, HashBroadcast, PerspectiveDiff, PerspectiveDiffEntryReference, PullResult,
+};
+
+use crate::errors::SocialContextResult;
+use crate::link_adapter::revisions::{current_revision, update_current_revision};
+use crate::link_adapter::workspace::{Workspace, NULL_NODE};
+use crate::retriever::PerspectiveDiffRetreiver;
+use crate::utils::get_now;
+use crate::Hash;
+
+fn merge<Retriever: PerspectiveDiffRetreiver>(
+    latest: Hash,
+    current: Hash,
+) -> SocialContextResult<Hash> {
+    debug!("===PerspectiveDiffSync.merge(): Function start");
+    let fn_start = get_now()?.time();
+
+    let latest_diff = Retriever::get::<PerspectiveDiffEntryReference>(latest.clone())?;
+    let current_diff = Retriever::get::<PerspectiveDiffEntryReference>(current.clone())?;
+    //Create the merge diff
+    let merge_diff = PerspectiveDiff {
+        additions: vec![],
+        removals: vec![],
+    };
+    let merge_entry_hash =
+        Retriever::create_entry(EntryTypes::PerspectiveDiff(merge_diff.clone()))?;
+
+    //Create the merge entry reference
+    let merge_entry_reference = PerspectiveDiffEntryReference {
+        parents: Some(vec![latest, current]),
+        diff: merge_entry_hash.clone(),
+        diffs_since_snapshot: latest_diff.diffs_since_snapshot
+            + current_diff.diffs_since_snapshot
+            + 1,
+    };
+    let merge_entry_reference_hash = Retriever::create_entry(
+        EntryTypes::PerspectiveDiffEntryReference(merge_entry_reference.clone()),
+    )?;
+    debug!(
+        "===PerspectiveDiffSync.merge(): Commited merge entry: {:#?}",
+        merge_entry_reference_hash
+    );
+
+    let now = get_now()?;
+    update_current_revision::<Retriever>(merge_entry_reference_hash.clone(), now)?;
+
+    let fn_end = get_now()?.time();
+    debug!(
+        "===PerspectiveDiffSync.merge() - Profiling: Took: {} to complete merge() function",
+        (fn_end - fn_start).num_milliseconds()
+    );
+    Ok(merge_entry_reference_hash)
+}
+
+pub fn pull<Retriever: PerspectiveDiffRetreiver>(
+    emit: bool,
+    theirs: Hash,
+    is_scribe: bool,
+) -> SocialContextResult<PullResult> {
+    debug!("===PerspectiveDiffSync.pull(): Function start");
+    let fn_start = get_now()?.time();
+
+    let current = current_revision::<Retriever>()?;
+    let current_hash = current.clone().map(|val| val.hash);
+    debug!(
+        "===PerspectiveDiffSync.pull(): Pull made with theirs: {:#?} and current: {:#?}",
+        theirs, current
+    );
+
+    let theirs_hash = theirs.clone();
+
+    if Some(theirs_hash) == current_hash {
+        return Ok(PullResult {
+            diff: PerspectiveDiff::default(),
+            current_revision: current_hash,
+        });
+    }
+
+    let mut workspace = Workspace::new();
+
+    if current.is_none() {
+        workspace.collect_only_from_latest::<Retriever>(theirs.clone())?;
+        let diff = workspace.squashed_diff::<Retriever>()?;
+        update_current_revision::<Retriever>(theirs, get_now()?)?;
+        emit_signal(diff.clone())?;
+        return Ok(PullResult {
+            diff: PerspectiveDiff::default(),
+            current_revision: None,
+        });
+    }
+
+    let current = current.expect("current missing handled above");
+
+    workspace.build_diffs::<Retriever>(theirs.clone(), current.hash.clone())?;
+
+    // First check if we are actually ahead of them -> we don't have to do anything
+    // they will have to merge with / or fast-forward to our current
+    if workspace.all_ancestors(&current.hash)?.contains(&theirs) {
+        return Ok(PullResult {
+            diff: PerspectiveDiff::default(),
+            current_revision: Some(current.hash),
+        });
+    }
+
+    let fast_forward_possible = workspace.all_ancestors(&theirs)?.contains(&current.hash);
+
+    // If we can't fast forward, we have to merge
+    // but if we are not a scribe, we can't merge
+    // so in that case, we can't do anything
+    if !fast_forward_possible && !is_scribe {
+        debug!("===PerspectiveDiffSync.pull(): Have to merge but I'm not a scribe. Exiting without change...");
+        return Ok(PullResult {
+            diff: PerspectiveDiff::default(),
+            current_revision: Some(current.hash),
+        });
+    }
+
+    //Get all the diffs which exist between current and the last ancestor that we got
+    let seen_diffs = workspace.all_ancestors(&current.hash)?;
+    // println!("SEEN DIFFS: {:#?}", seen_diffs);
+
+    //Get all the diffs in the graph which we havent seen
+    let unseen_diffs = if seen_diffs.len() > 0 {
+        let diffs = workspace
+            .sorted_diffs
+            .clone()
+            .expect("should be unseen diffs after build_diffs() call")
+            .into_iter()
+            .filter(|val| {
+                if val.0 == NULL_NODE() {
+                    return false;
+                };
+                if val.0 == current.hash {
+                    return false;
+                };
+                if seen_diffs.contains(&val.0) {
+                    return false;
+                };
+                true
+            })
+            .collect::<Vec<(Hash, PerspectiveDiffEntryReference)>>();
+        diffs
+    } else {
+        workspace
+            .sorted_diffs
+            .expect("should be unseen diffs after build_diffs() call")
+            .into_iter()
+            .filter(|val| val.0 != NULL_NODE() && val.0 != current.hash)
+            .collect::<Vec<(Hash, PerspectiveDiffEntryReference)>>()
+    };
+
+    let (diffs, current_revision) = if fast_forward_possible {
+        debug!("===PerspectiveDiffSync.pull(): There are paths between current and latest, lets fast forward the changes we have missed!");
+        let mut out = PerspectiveDiff {
+            additions: vec![],
+            removals: vec![],
+        };
+        for diff in unseen_diffs {
+            let diff_entry = Retriever::get::<PerspectiveDiff>(diff.1.diff.clone())?;
+            out.additions.append(&mut diff_entry.additions.clone());
+            out.removals.append(&mut diff_entry.removals.clone());
+        }
+        update_current_revision::<Retriever>(theirs.clone(), get_now()?)?;
+        let fn_end = get_now()?.time();
+        debug!(
+            "===PerspectiveDiffSync.pull() - Profiling: Took: {} to complete pull() function",
+            (fn_end - fn_start).num_milliseconds()
+        );
+        (out, theirs)
+    } else if is_scribe {
+        debug!("===PerspectiveDiffSync.pull():There are no paths between current and latest, we must merge current and latest");
+        //Get the entries we missed from unseen diff
+        let mut out = PerspectiveDiff {
+            additions: vec![],
+            removals: vec![],
+        };
+        for diff in unseen_diffs {
+            let diff_entry = Retriever::get::<PerspectiveDiff>(diff.1.diff.clone())?;
+            out.additions.append(&mut diff_entry.additions.clone());
+            out.removals.append(&mut diff_entry.removals.clone());
+        }
+
+        let merge_hash = merge::<Retriever>(theirs, current.hash)?;
+        let fn_end = get_now()?.time();
+        debug!(
+            "===PerspectiveDiffSync.pull() - Profiling: Took: {} to complete pull() function",
+            (fn_end - fn_start).num_milliseconds()
+        );
+        (out, merge_hash)
+    } else {
+        (
+            PerspectiveDiff {
+                additions: vec![],
+                removals: vec![],
+            },
+            current.hash,
+        )
+    };
+
+    //Emit the signal in case the client connection has a timeout during the zome call
+    if emit {
+        if diffs.additions.len() > 0 || diffs.removals.len() > 0 {
+            emit_signal(diffs.clone())?;
+        }
+    }
+    Ok(PullResult {
+        diff: diffs,
+        current_revision: Some(current_revision),
+    })
+}
+
+pub fn handle_broadcast<Retriever: PerspectiveDiffRetreiver>(
+    broadcast: HashBroadcast,
+) -> SocialContextResult<()> {
+    // debug!("===PerspectiveDiffSync.fast_forward_signal(): Function start");
+    // let fn_start = get_now()?.time();
+    let diff_reference = broadcast.reference.clone();
+    let revision = broadcast.reference_hash.clone();
+
+    let current_revision = current_revision::<Retriever>()?;
+
+    if current_revision.is_some() {
+        let current_revision = current_revision.unwrap();
+        if revision == current_revision.hash {
+            // debug!("===PerspectiveDiffSync.fast_forward_signal(): Revision is the same as current");
+        };
+        if diff_reference.parents == Some(vec![current_revision.hash]) {
+            // debug!("===PerspectiveDiffSync.fast_forward_signal(): Revisions parent is the same as current, we can fast forward our current");
+            update_current_revision::<Retriever>(revision, get_now()?)?;
+            emit_signal(broadcast.diff.clone())?;
+        };
+    };
+    //emit_signal(broadcast)?;
+    // let fn_end = get_now()?.time();
+    // debug!("===PerspectiveDiffSync.fast_forward_signal() - Profiling: Took: {} to complete fast_forward_signal() function", (fn_end - fn_start).num_milliseconds());
+    Ok(())
+}
+
+#[cfg(test)]
+mod tests {
+    use super::pull;
+    use crate::retriever::{
+        create_node_id_link_expression, create_node_id_vec, node_id_hash, MockPerspectiveGraph,
+        PerspectiveDiffRetreiver, GLOBAL_MOCKED_GRAPH,
+    };
+    use crate::utils::create_link_expression;
+    use dot_structures;
+
+    #[test]
+    fn test_fast_forward_merge() {
+        fn update() {
+            let mut graph = GLOBAL_MOCKED_GRAPH.lock().unwrap();
+            *graph = MockPerspectiveGraph::from_dot(
+                r#"digraph {
+                0 [ label = "0" ]
+                1 [ label = "1" ]
+                2 [ label = "2" ]
+                3 [ label = "3" ]
+
+                1 -> 0 
+                2 -> 0 
+                3 -> 1 
+                3 -> 2
+                
+            }"#,
+            )
+            .unwrap();
+        }
+        update();
+
+        let latest_node_hash = node_id_hash(&dot_structures::Id::Plain(String::from("3")));
+
+        let current_node_hash = node_id_hash(&dot_structures::Id::Plain(String::from("2")));
+        let update_current =
+            MockPerspectiveGraph::update_current_revision(current_node_hash, chrono::Utc::now());
+        assert!(update_current.is_ok());
+
+        let pull_res = pull::<MockPerspectiveGraph>(false, latest_node_hash, true);
+        assert!(pull_res.is_ok());
+        let pull_res = pull_res.unwrap();
+
+        let node_1 = &node_id_hash(&dot_structures::Id::Plain(String::from("1"))).to_string();
+        let node_3 = &node_id_hash(&dot_structures::Id::Plain(String::from("3"))).to_string();
+        let expected_additions = vec![
+            create_link_expression(node_1, node_1),
+            create_link_expression(node_3, node_3),
+        ];
+
+        assert!(pull_res
+            .diff
+            .additions
+            .iter()
+            .all(|item| expected_additions.contains(item)));
+    }
+
+    #[test]
+    fn test_complex_merge() {
+        fn update() {
+            let mut graph = GLOBAL_MOCKED_GRAPH.lock().unwrap();
+            *graph = MockPerspectiveGraph::from_dot(
+                r#"digraph {
+                1 [ label = "1" ]
+                2 [ label = "2" ]
+                3 [ label = "3" ]
+                4 [ label = "4" ]
+                5 [ label = "5" ]
+                6 [ label = "6" ]
+            
+                3 -> 2
+                4 -> 2
+                5 -> 3
+                5 -> 4
+                6 -> 5
+            }"#,
+            )
+            .unwrap();
+        }
+        update();
+
+        let latest_node_hash = node_id_hash(&dot_structures::Id::Plain(String::from("6")));
+
+        let current_node_hash = node_id_hash(&dot_structures::Id::Plain(String::from("1")));
+        let update_current =
+            MockPerspectiveGraph::update_current_revision(current_node_hash, chrono::Utc::now());
+        assert!(update_current.is_ok());
+
+        let pull_res = pull::<MockPerspectiveGraph>(false, latest_node_hash.clone(), true);
+        assert!(pull_res.is_ok());
+        let pull_res = pull_res.unwrap();
+
+        let node_2 = &node_id_hash(&dot_structures::Id::Plain(String::from("2"))).to_string();
+        let node_3 = &node_id_hash(&dot_structures::Id::Plain(String::from("3"))).to_string();
+        let node_4 = &node_id_hash(&dot_structures::Id::Plain(String::from("4"))).to_string();
+        let node_5 = &node_id_hash(&dot_structures::Id::Plain(String::from("5"))).to_string();
+        let node_6 = &node_id_hash(&dot_structures::Id::Plain(String::from("6"))).to_string();
+        let expected_additions = vec![
+            create_link_expression(node_2, node_2),
+            create_link_expression(node_3, node_3),
+            create_link_expression(node_4, node_4),
+            create_link_expression(node_5, node_5),
+            create_link_expression(node_6, node_6),
+        ];
+
+        assert!(pull_res
+            .diff
+            .additions
+            .iter()
+            .all(|item| expected_additions.contains(item)));
+
+        //Test that a merge actually happened and current was updated
+        let new_current = MockPerspectiveGraph::current_revision();
+        assert!(new_current.is_ok());
+        let new_current = new_current.unwrap();
+
+        assert!(new_current.unwrap().hash != latest_node_hash);
+    }
+
+    #[test]
+    fn test_complex_fast_forward() {
+        fn update() {
+            let mut graph = GLOBAL_MOCKED_GRAPH.lock().unwrap();
+            *graph = MockPerspectiveGraph::from_dot(
+                r#"digraph {
+                1 [ label = "1" ]
+                2 [ label = "2" ]
+                3 [ label = "3" ]
+                4 [ label = "4" ]
+                5 [ label = "5" ]
+                6 [ label = "6" ]
+            
+                3 -> 2
+                4 -> 2
+                5 -> 3
+                5 -> 4
+                6 -> 5
+            }"#,
+            )
+            .unwrap();
+        }
+        update();
+
+        let latest_node_hash = node_id_hash(&dot_structures::Id::Plain(String::from("6")));
+
+        let current_node_hash = node_id_hash(&dot_structures::Id::Plain(String::from("4")));
+        let update_current =
+            MockPerspectiveGraph::update_current_revision(current_node_hash, chrono::Utc::now());
+        assert!(update_current.is_ok());
+
+        let pull_res = pull::<MockPerspectiveGraph>(false, latest_node_hash, true);
+        assert!(pull_res.is_ok());
+        let pull_res = pull_res.unwrap();
+
+        let node_3 = &node_id_hash(&dot_structures::Id::Plain(String::from("3"))).to_string();
+        let node_5 = &node_id_hash(&dot_structures::Id::Plain(String::from("5"))).to_string();
+        let node_6 = &node_id_hash(&dot_structures::Id::Plain(String::from("6"))).to_string();
+        let expected_additions = vec![
+            create_link_expression(node_3, node_3),
+            create_link_expression(node_5, node_5),
+            create_link_expression(node_6, node_6),
+        ];
+
+        assert!(pull_res
+            .diff
+            .additions
+            .iter()
+            .all(|item| expected_additions.contains(item)));
+    }
+
+    #[test]
+    fn test_fast_forward_after_merge() {
+        fn update() {
+            let mut graph = GLOBAL_MOCKED_GRAPH.lock().unwrap();
+            *graph = MockPerspectiveGraph::from_dot(
+                r#"digraph {
+                1 [ label = "1" ]
+                2 [ label = "2" ]
+                3 [ label = "3" ]
+                4 [ label = "4" ]
+                5 [ label = "5" ]
+                6 [ label = "6" ]
+                7 [ label = "7" ]
+            
+                3 -> 2
+                4 -> 2
+                5 -> 3
+                5 -> 4
+                6 -> 5
+                7 -> 1
+                7 -> 6
+            }"#,
+            )
+            .unwrap();
+        }
+        update();
+
+        let latest_node_hash = node_id_hash(&dot_structures::Id::Plain(String::from("7")));
+
+        let current_node_hash = node_id_hash(&dot_structures::Id::Plain(String::from("6")));
+        let update_current =
+            MockPerspectiveGraph::update_current_revision(current_node_hash, chrono::Utc::now());
+        assert!(update_current.is_ok());
+
+        let pull_res = pull::<MockPerspectiveGraph>(false, latest_node_hash, true);
+        assert!(pull_res.is_ok());
+        let pull_res = pull_res.unwrap();
+
+        let node_1 = &node_id_hash(&dot_structures::Id::Plain(String::from("1"))).to_string();
+        let node_7 = &node_id_hash(&dot_structures::Id::Plain(String::from("7"))).to_string();
+        let expected_additions = vec![
+            create_link_expression(node_1, node_1),
+            create_link_expression(node_7, node_7),
+        ];
+
+        assert!(pull_res
+            .diff
+            .additions
+            .iter()
+            .all(|item| expected_additions.contains(item)));
+    }
+
+    #[test]
+    fn test_pull_complex_merge_implicit_zero() {
+        fn update() {
+            let mut graph = GLOBAL_MOCKED_GRAPH.lock().unwrap();
+            *graph = MockPerspectiveGraph::from_dot(
+                r#"digraph {
+                1 [ label = "1" ]
+                2 [ label = "2" ]
+                3 [ label = "3" ]
+                4 [ label = "4" ]
+                5 [ label = "5" ]
+                6 [ label = "6" ]
+                4 -> 2 [ label = "()" ]
+                5 -> 4 [ label = "()" ]
+                5 -> 3 [ label = "()" ]
+                6 -> 5 [ label = "()" ]
+            }"#,
+            )
+            .unwrap();
+        }
+        update();
+
+        let node_1 = node_id_hash(&dot_structures::Id::Plain(String::from("1")));
+        let node_6 = node_id_hash(&dot_structures::Id::Plain(String::from("6")));
+
+        let latest_node_hash = node_1;
+
+        let current_node_hash = node_6;
+        let update_current = MockPerspectiveGraph::update_current_revision(
+            current_node_hash.clone(),
+            chrono::Utc::now(),
+        );
+        assert!(update_current.is_ok());
+
+        let node_1 = &node_id_hash(&dot_structures::Id::Plain(String::from("1"))).to_string();
+        let expected_additions = vec![create_link_expression(node_1, node_1)];
+
+        let pull_res = pull::<MockPerspectiveGraph>(false, latest_node_hash.clone(), true);
+        assert!(pull_res.is_ok());
+        assert!(pull_res
+            .unwrap()
+            .diff
+            .additions
+            .iter()
+            .all(|item| expected_additions.contains(item)));
+
+        //ensure that merge was created and thus current revision got updated
+        let current = MockPerspectiveGraph::current_revision();
+        assert!(current.unwrap().unwrap().hash != current_node_hash);
+    }
+
+    #[test]
+    fn test_pull_complex_merge_implicit_zero_reversed() {
+        fn update() {
+            let mut graph = GLOBAL_MOCKED_GRAPH.lock().unwrap();
+            *graph = MockPerspectiveGraph::from_dot(
+                r#"digraph {
+                1 [ label = "1" ]
+                2 [ label = "2" ]
+                3 [ label = "3" ]
+                4 [ label = "4" ]
+                5 [ label = "5" ]
+                6 [ label = "6" ]
+                4 -> 2 [ label = "()" ]
+                5 -> 4 [ label = "()" ]
+                5 -> 3 [ label = "()" ]
+                6 -> 5 [ label = "()" ]
+            }"#,
+            )
+            .unwrap();
+        }
+        update();
+
+        let node_1 = node_id_hash(&dot_structures::Id::Plain(String::from("1")));
+        let node_6 = node_id_hash(&dot_structures::Id::Plain(String::from("6")));
+
+        let latest_node_hash = node_6;
+
+        let current_node_hash = node_1;
+        let update_current = MockPerspectiveGraph::update_current_revision(
+            current_node_hash.clone(),
+            chrono::Utc::now(),
+        );
+        assert!(update_current.is_ok());
+
+        let node_6 = &node_id_hash(&dot_structures::Id::Plain(String::from("6"))).to_string();
+        let node_5 = &node_id_hash(&dot_structures::Id::Plain(String::from("5"))).to_string();
+        let node_4 = &node_id_hash(&dot_structures::Id::Plain(String::from("4"))).to_string();
+        let node_3 = &node_id_hash(&dot_structures::Id::Plain(String::from("3"))).to_string();
+        let node_2 = &node_id_hash(&dot_structures::Id::Plain(String::from("2"))).to_string();
+        let expected_additions = vec![
+            create_link_expression(node_6, node_6),
+            create_link_expression(node_5, node_5),
+            create_link_expression(node_4, node_4),
+            create_link_expression(node_3, node_3),
+            create_link_expression(node_2, node_2),
+        ];
+
+        let pull_res = pull::<MockPerspectiveGraph>(false, latest_node_hash.clone(), true);
+        assert!(pull_res.is_ok());
+        assert!(pull_res
+            .unwrap()
+            .diff
+            .additions
+            .iter()
+            .all(|item| expected_additions.contains(item)));
+
+        //ensure that merge was created and thus current revision got updated
+        let current = MockPerspectiveGraph::current_revision();
+        assert!(current.unwrap().unwrap().hash != current_node_hash);
+    }
+
+    #[test]
+    fn test_three_null_parents() {
+        fn update() {
+            let mut graph = GLOBAL_MOCKED_GRAPH.lock().unwrap();
+            *graph = MockPerspectiveGraph::from_dot(
+                r#"digraph {
+                1 [ label = "1" ]
+                2 [ label = "2" ]
+                3 [ label = "3" ]
+                4 [ label = "4" ]
+                5 [ label = "5" ]
+
+                4 -> 2
+                4 -> 3
+                5 -> 4
+                5 -> 1
+            }"#,
+            )
+            .unwrap();
+        }
+        update();
+
+        let latest_node_hash = node_id_hash(&dot_structures::Id::Plain(String::from("5")));
+
+        let current_node_hash = node_id_hash(&dot_structures::Id::Plain(String::from("2")));
+        let update_current = MockPerspectiveGraph::update_current_revision(
+            current_node_hash.clone(),
+            chrono::Utc::now(),
+        );
+        assert!(update_current.is_ok());
+
+        let pull_res = pull::<MockPerspectiveGraph>(false, latest_node_hash.clone(), true);
+        assert!(pull_res.is_ok());
+        println!("{:#?}", pull_res);
+        let pull_res = pull_res.unwrap();
+
+        let node_5 = &node_id_hash(&dot_structures::Id::Plain(String::from("5"))).to_string();
+        let node_4 = &node_id_hash(&dot_structures::Id::Plain(String::from("4"))).to_string();
+        let node_3 = &node_id_hash(&dot_structures::Id::Plain(String::from("3"))).to_string();
+        let node_1 = &node_id_hash(&dot_structures::Id::Plain(String::from("1"))).to_string();
+        let expected_additions = vec![
+            create_link_expression(node_5, node_5),
+            create_link_expression(node_4, node_4),
+            create_link_expression(node_3, node_3),
+            create_link_expression(node_1, node_1),
+        ];
+
+        assert!(pull_res
+            .diff
+            .additions
+            .iter()
+            .all(|item| expected_additions.contains(item)));
+
+        //ensure that no merge was created
+        //let latest = MockPerspectiveGraph::latest_revision();
+        //assert!(latest.unwrap().unwrap().hash == latest_node_hash);
+    }
+
+    #[test]
+    fn test_four_null_parents() {
+        fn update() {
+            let mut graph = GLOBAL_MOCKED_GRAPH.lock().unwrap();
+            *graph = MockPerspectiveGraph::from_dot(
+                r#"digraph {
+                1 [ label = "1" ]
+                2 [ label = "2" ]
+                3 [ label = "3" ]
+                4 [ label = "4" ]
+                5 [ label = "5" ]
+                6 [ label = "6" ]
+
+                4 -> 2
+                4 -> 3
+                5 -> 4
+                5 -> 1
+            }"#,
+            )
+            .unwrap();
+        }
+        update();
+
+        let latest_node_hash = node_id_hash(&dot_structures::Id::Plain(String::from("5")));
+
+        let current_node_hash = node_id_hash(&dot_structures::Id::Plain(String::from("6")));
+        let update_current = MockPerspectiveGraph::update_current_revision(
+            current_node_hash.clone(),
+            chrono::Utc::now(),
+        );
+        assert!(update_current.is_ok());
+
+        let pull_res = pull::<MockPerspectiveGraph>(false, latest_node_hash.clone(), true);
+        assert!(pull_res.is_ok());
+        println!("{:#?}", pull_res);
+        let pull_res = pull_res.unwrap();
+
+        let node_5 = &node_id_hash(&dot_structures::Id::Plain(String::from("5"))).to_string();
+        let node_4 = &node_id_hash(&dot_structures::Id::Plain(String::from("4"))).to_string();
+        let node_3 = &node_id_hash(&dot_structures::Id::Plain(String::from("3"))).to_string();
+        let node_2 = &node_id_hash(&dot_structures::Id::Plain(String::from("2"))).to_string();
+        let node_1 = &node_id_hash(&dot_structures::Id::Plain(String::from("1"))).to_string();
+        let expected_additions = vec![
+            create_link_expression(node_5, node_5),
+            create_link_expression(node_4, node_4),
+            create_link_expression(node_3, node_3),
+            create_link_expression(node_2, node_2),
+            create_link_expression(node_1, node_1),
+        ];
+
+        assert!(pull_res
+            .diff
+            .additions
+            .iter()
+            .all(|item| expected_additions.contains(item)));
+
+        //ensure that merge was created and thus current revision got updated
+        let current = MockPerspectiveGraph::current_revision();
+        assert!(current.unwrap().unwrap().hash != current_node_hash);
+    }
+
+    #[test]
+    fn test_high_complex_graph() {
+        fn update() {
+            let mut graph = GLOBAL_MOCKED_GRAPH.lock().unwrap();
+            *graph = MockPerspectiveGraph::from_dot(
+                &crate::link_adapter::test_graphs::HIGH_COMPLEX_GRAPH,
+            )
+            .unwrap();
+        }
+        update();
+
+        let latest_node_hash = node_id_hash(&dot_structures::Id::Plain(String::from("52")));
+
+        let current_node_hash = node_id_hash(&dot_structures::Id::Plain(String::from("55")));
+        let update_current = MockPerspectiveGraph::update_current_revision(
+            current_node_hash.clone(),
+            chrono::Utc::now(),
+        );
+        assert!(update_current.is_ok());
+
+        let pull_res = pull::<MockPerspectiveGraph>(false, latest_node_hash.clone(), true);
+        assert!(pull_res.is_ok());
+        //println!("{:#?}", pull_res);
+        let pull_res = pull_res.unwrap();
+
+        let mut expected_additions = create_node_id_vec(23, 52);
+        expected_additions.push(create_node_id_link_expression(20));
+        expected_additions.push(create_node_id_link_expression(21));
+
+        for addition in expected_additions.clone() {
+            assert!(pull_res.diff.additions.contains(&addition));
+        }
+        assert!(pull_res
+            .diff
+            .additions
+            .iter()
+            .all(|item| expected_additions.contains(item)));
+
+        //ensure that merge was created and thus current revision got updated
+        let current = MockPerspectiveGraph::current_revision();
+        assert!(current.unwrap().unwrap().hash != current_node_hash);
+    }
+
+    #[test]
+    fn test_late_join() {
+        fn update() {
+            let mut graph = GLOBAL_MOCKED_GRAPH.lock().unwrap();
+            *graph = MockPerspectiveGraph::from_dot(&crate::link_adapter::test_graphs::LATE_JOIN)
+                .unwrap();
+        }
+        update();
+
+        let latest_node_hash = node_id_hash(&dot_structures::Id::Plain(String::from("314")));
+
+        let current_node_hash = node_id_hash(&dot_structures::Id::Plain(String::from("313")));
+        let update_current = MockPerspectiveGraph::update_current_revision(
+            current_node_hash.clone(),
+            chrono::Utc::now(),
+        );
+        assert!(update_current.is_ok());
+
+        let pull_res = pull::<MockPerspectiveGraph>(false, latest_node_hash.clone(), true);
+        assert!(pull_res.is_ok());
+        //println!("{:#?}", pull_res);
+        let pull_res = pull_res.unwrap();
+
+        let expected_additions = vec![create_node_id_link_expression(314)];
+
+        assert!(pull_res
+            .diff
+            .additions
+            .iter()
+            .all(|item| expected_additions.contains(item)));
+
+        //ensure that merge was created and thus current revision got updated
+        let current = MockPerspectiveGraph::current_revision();
+        assert!(current.unwrap().unwrap().hash != current_node_hash);
+    }
+
+    #[test]
+    fn test_late_join_from_syncd() {
+        fn update() {
+            let mut graph = GLOBAL_MOCKED_GRAPH.lock().unwrap();
+            *graph = MockPerspectiveGraph::from_dot(&crate::link_adapter::test_graphs::LATE_JOIN2)
+                .unwrap();
+        }
+        update();
+
+        let latest_node_hash = node_id_hash(&dot_structures::Id::Plain(String::from("304")));
+
+        let current_node_hash = node_id_hash(&dot_structures::Id::Plain(String::from("301")));
+        let update_current = MockPerspectiveGraph::update_current_revision(
+            current_node_hash.clone(),
+            chrono::Utc::now(),
+        );
+        assert!(update_current.is_ok());
+
+        let pull_res = pull::<MockPerspectiveGraph>(false, latest_node_hash.clone(), true);
+        assert!(pull_res.is_ok());
+        let pull_res = pull_res.unwrap();
+
+        let expected_additions = vec![
+            create_node_id_link_expression(304),
+            create_node_id_link_expression(303),
+            create_node_id_link_expression(302),
+        ];
+
+        assert!(pull_res
+            .diff
+            .additions
+            .iter()
+            .all(|item| expected_additions.contains(item)));
+
+        //ensure that merge was created and thus current revision got updated
+        let current = MockPerspectiveGraph::current_revision();
+        assert!(current.unwrap().unwrap().hash != current_node_hash);
+    }
+
+    #[test]
+    fn test_late_join_from_unsyncd() {
+        fn update() {
+            let mut graph = GLOBAL_MOCKED_GRAPH.lock().unwrap();
+            *graph = MockPerspectiveGraph::from_dot(&crate::link_adapter::test_graphs::LATE_JOIN2)
+                .unwrap();
+        }
+        update();
+
+        let latest_node_hash = node_id_hash(&dot_structures::Id::Plain(String::from("301")));
+
+        let current_node_hash = node_id_hash(&dot_structures::Id::Plain(String::from("304")));
+        let update_current = MockPerspectiveGraph::update_current_revision(
+            current_node_hash.clone(),
+            chrono::Utc::now(),
+        );
+        assert!(update_current.is_ok());
+
+        let pull_res = pull::<MockPerspectiveGraph>(false, latest_node_hash.clone(), true);
+        assert!(pull_res.is_ok());
+        let pull_res = pull_res.unwrap();
+
+        let expected_additions = create_node_id_vec(1, 301);
+
+        assert!(pull_res
+            .diff
+            .additions
+            .iter()
+            .all(|item| expected_additions.contains(item)));
+
+        //ensure that merge was created and thus current revision got updated
+        let current = MockPerspectiveGraph::current_revision();
+        assert!(current.unwrap().unwrap().hash != current_node_hash);
+    }
+}
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/link_adapter/render.rs b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/link_adapter/render.rs
new file mode 100644
index 000000000..1b41a886d
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/link_adapter/render.rs
@@ -0,0 +1,42 @@
+use hdk::prelude::*;
+use perspective_diff_sync_integrity::PerspectiveDiff;
+
+use crate::errors::{SocialContextError, SocialContextResult};
+use crate::link_adapter::revisions::current_revision;
+use crate::link_adapter::workspace::Workspace;
+use crate::retriever::PerspectiveDiffRetreiver;
+use crate::utils::get_now;
+use crate::Perspective;
+
+pub fn render<Retriever: PerspectiveDiffRetreiver>() -> SocialContextResult<Perspective> {
+    debug!("===PerspectiveDiffSync.render(): Function start");
+    let fn_start = get_now()?.time();
+
+    let current = current_revision::<Retriever>()?.ok_or(SocialContextError::InternalError(
+        "Can't render when we have no current revision",
+    ))?;
+
+    debug!("===PerspectiveDiffSync.render(): current: {:?}", current);
+
+    let mut workspace = Workspace::new();
+    workspace.collect_only_from_latest::<Retriever>(current.hash)?;
+
+    let mut perspective = Perspective { links: vec![] };
+    for diff_node in workspace.entry_map {
+        let diff_entry = Retriever::get::<PerspectiveDiff>(diff_node.1.diff.clone())?;
+
+        for addition in diff_entry.additions {
+            perspective.links.push(addition);
+        }
+        for removal in diff_entry.removals {
+            perspective.links.retain(|l| l != &removal);
+        }
+    }
+
+    let fn_end = get_now()?.time();
+    debug!(
+        "===PerspectiveDiffSync.render() - Profiling: Took: {} to complete render() function",
+        (fn_end - fn_start).num_milliseconds()
+    );
+    Ok(perspective)
+}
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/link_adapter/revisions.rs b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/link_adapter/revisions.rs
new file mode 100644
index 000000000..e0a7cd09f
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/link_adapter/revisions.rs
@@ -0,0 +1,32 @@
+use chrono::{DateTime, Utc};
+use hdk::prelude::debug;
+use perspective_diff_sync_integrity::LocalHashReference;
+
+use crate::errors::SocialContextResult;
+use crate::retriever::PerspectiveDiffRetreiver;
+use crate::utils::get_now;
+use crate::Hash;
+
+pub fn update_current_revision<Retriever: PerspectiveDiffRetreiver>(
+    hash: Hash,
+    timestamp: DateTime<Utc>,
+) -> SocialContextResult<()> {
+    debug!("===PerspectiveDiffSync.update_current_revision(): Function start");
+    let now = get_now()?.time();
+    let res = Retriever::update_current_revision(hash, timestamp);
+    let after = get_now()?.time();
+    debug!("===PerspectiveDiffSync.update_current_revision() - Profiling: Took: {} to update current_revision", (after - now).num_milliseconds());
+    res
+}
+
+//Latest revision as seen from our local state
+pub fn current_revision<Retriever: PerspectiveDiffRetreiver>(
+) -> SocialContextResult<Option<LocalHashReference>> {
+    //debug!("===PerspectiveDiffSync.current_revision(): Function start");
+    //let now = get_now()?.time();
+    let rev = Retriever::current_revision()?;
+    // debug!("===PerspectiveDiffSync.current_revision(): rev = {:?}", rev);
+    //let after = get_now()?.time();
+    //debug!("===PerspectiveDiffSync.current_revision() - Profiling: Took: {} to get the current_revision", (after - now).num_milliseconds());
+    Ok(rev)
+}
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/link_adapter/snapshots.rs b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/link_adapter/snapshots.rs
new file mode 100644
index 000000000..e366c16a5
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/link_adapter/snapshots.rs
@@ -0,0 +1,264 @@
+use hdk::prelude::*;
+use perspective_diff_sync_integrity::{
+    LinkExpression, LinkTypes, PerspectiveDiff, PerspectiveDiffEntryReference, Snapshot,
+};
+
+use crate::errors::{SocialContextError, SocialContextResult};
+use crate::link_adapter::chunked_diffs::ChunkedDiffs;
+use crate::retriever::HolochainRetreiver;
+use crate::utils::get_now;
+use crate::{Hash, CHUNK_SIZE};
+
+struct SearchPosition {
+    hash: Hash,
+    is_unseen: bool,
+}
+
+pub fn generate_snapshot(
+    latest: HoloHash<holo_hash::hash_type::Action>,
+) -> SocialContextResult<Snapshot> {
+    debug!("===PerspectiveDiffSync.generate_snapshot(): Function start");
+    let fn_start = get_now()?.time();
+    let mut search_position = SearchPosition {
+        hash: latest.clone(),
+        is_unseen: false,
+    };
+    let mut seen: HashSet<Hash> = HashSet::new();
+    let mut unseen_parents = vec![];
+
+    let mut all_additions = BTreeSet::new();
+    let mut all_removals = BTreeSet::new();
+
+    loop {
+        let diff = get(search_position.hash.clone(), GetOptions::latest())?
+            .ok_or(SocialContextError::InternalError(
+                "generate_snapshot(): Could not find entry while populating search",
+            ))?
+            .entry()
+            .to_app_option::<PerspectiveDiffEntryReference>()?
+            .ok_or(SocialContextError::InternalError(
+                "Expected element to contain app entry data",
+            ))?;
+        if diff.diffs_since_snapshot == 0 && search_position.hash != latest {
+            let now = get_now()?.time();
+            // let input = GetLinksInputBuilder::try_new(
+            //     hash_entry(&diff)?,
+            //     LinkTypes::Snapshot
+            // )
+            // .unwrap()
+            // .tag_prefix(LinkTag::new("snapshot"))
+            // .build();
+            let mut snapshot_links = get_links(hash_entry(&diff)?, LinkTypes::Snapshot, Some(LinkTag::new("snapshot")))?;
+            let after = get_now()?.time();
+            debug!("===PerspectiveDiffSync.generate_snapshot() - Profiling: Took {} to get the snapshot links", (after - now).num_milliseconds());
+            if snapshot_links.len() == 0 {
+                debug!("===PerspectiveDiffSync.generate_snapshot() - ERROR: Did not find snapshot link where we expected to!");
+                let should_break = handle_parents(
+                    diff,
+                    &mut search_position,
+                    &mut seen,
+                    &mut unseen_parents,
+                    &mut all_additions,
+                    &mut all_removals,
+                )?;
+                if should_break {
+                    break;
+                }
+            } else {
+                let now = get_now()?.time();
+                //get snapshot and add elements to out
+                let snapshot = get(
+                    snapshot_links
+                        .remove(0)
+                        .target
+                        .into_entry_hash()
+                        .expect("Could not get entry_hash"),
+                    GetOptions::latest(),
+                )?
+                .ok_or(SocialContextError::InternalError(
+                    "Could not find diff entry for given diff entry reference",
+                ))?
+                .entry()
+                .to_app_option::<Snapshot>()?
+                .ok_or(SocialContextError::InternalError(
+                    "Expected element to contain app entry data",
+                ))?;
+                let after = get_now()?.time();
+                debug!("===PerspectiveDiffSync.generate_snapshot() - Profiling: Took {} to get the snapshot entry", (after - now).num_milliseconds());
+
+                let diff = ChunkedDiffs::from_entries::<HolochainRetreiver>(snapshot.diff_chunks)?
+                    .into_aggregated_diff();
+                for addition in diff.additions.iter() {
+                    all_additions.insert(addition.clone());
+                }
+                for removal in diff.removals.iter() {
+                    all_removals.insert(removal.clone());
+                }
+                for hash in snapshot.included_diffs.iter() {
+                    seen.insert(hash.clone());
+                }
+                //Be careful with break here where there are still unseen parents
+                if unseen_parents.len() == 0 {
+                    // debug!("No more unseen parents within snapshot block");
+                    break;
+                } else {
+                    search_position = unseen_parents.remove(0);
+                }
+            };
+        } else {
+            let should_break = handle_parents(
+                diff,
+                &mut search_position,
+                &mut seen,
+                &mut unseen_parents,
+                &mut all_additions,
+                &mut all_removals,
+            )?;
+            if should_break {
+                break;
+            }
+        }
+    }
+
+    let mut chunked_diffs = ChunkedDiffs::new(*CHUNK_SIZE);
+
+    chunked_diffs.add_additions(all_additions.into_iter().collect());
+    chunked_diffs.add_removals(all_removals.into_iter().collect());
+
+    let snapshot = Snapshot {
+        diff_chunks: chunked_diffs.into_entries::<HolochainRetreiver>()?,
+        included_diffs: seen.into_iter().collect(),
+    };
+
+    let fn_end = get_now()?.time();
+    debug!("===PerspectiveDiffSync.generate_snapshot() - Profiling: Took: {} to complete generate_snapshot function", (fn_end - fn_start).num_milliseconds());
+    Ok(snapshot)
+}
+
+fn handle_parents(
+    diff: PerspectiveDiffEntryReference,
+    search_position: &mut SearchPosition,
+    seen: &mut HashSet<Hash>,
+    unseen_parents: &mut Vec<SearchPosition>,
+    all_additions: &mut BTreeSet<LinkExpression>,
+    all_removals: &mut BTreeSet<LinkExpression>,
+) -> SocialContextResult<bool> {
+    //Check if entry is already in graph
+    if !seen.contains(&search_position.hash) {
+        seen.insert(search_position.hash.clone());
+        let diff_entry = get(diff.diff.clone(), GetOptions::latest())?
+            .ok_or(SocialContextError::InternalError(
+                "Could not find diff entry for given diff entry reference",
+            ))?
+            .entry()
+            .to_app_option::<PerspectiveDiff>()?
+            .ok_or(SocialContextError::InternalError(
+                "Expected element to contain app entry data",
+            ))?;
+
+        for addition in diff_entry.additions.iter() {
+            all_additions.insert(addition.clone());
+        }
+        for removal in diff_entry.removals.iter() {
+            all_removals.insert(removal.clone());
+        }
+
+        if diff.parents.is_none() {
+            //No parents, we have reached the end of the chain
+            //Now move onto traversing unseen parents, or break if we dont have any other paths to search
+            if unseen_parents.len() == 0 {
+                // debug!("No more unseen items within parent block");
+                Ok(true)
+            } else {
+                // debug!("Moving onto unseen fork items within parent block");
+                *search_position = unseen_parents.remove(0);
+                Ok(false)
+            }
+        } else {
+            //Do the fork traversals
+            let mut parents = diff.parents.unwrap();
+            //Check if all parents have already been seen, if so then break or move onto next unseen parents
+            //TODO; we should use a seen set here versus array iter
+            if parents.iter().all(|val| seen.contains(val)) {
+                if unseen_parents.len() == 0 {
+                    // debug!("Parents of item seen and unseen 0");
+                    return Ok(true);
+                } else {
+                    // debug!("last moving onto unseen");
+                    *search_position = unseen_parents.remove(0);
+                    Ok(false)
+                }
+            } else {
+                *search_position = SearchPosition {
+                    hash: parents.remove(0),
+                    is_unseen: false,
+                };
+                // debug!("Appending parents to look up");
+                unseen_parents.append(
+                    &mut parents
+                        .into_iter()
+                        .map(|val| SearchPosition {
+                            hash: val,
+                            is_unseen: true,
+                        })
+                        .collect(),
+                );
+                Ok(false)
+            }
+        }
+    } else if search_position.is_unseen {
+        //The parent for this branch is already seen so likely already explored and we are part of the main branch
+        if unseen_parents.len() == 0 {
+            // debug!("No more unseen items within parent block");
+            Ok(true)
+        } else {
+            // debug!("Moving onto unseen fork items within parent block");
+            *search_position = unseen_parents.remove(0);
+            Ok(false)
+        }
+    } else {
+        if diff.parents.is_none() {
+            //No parents, we have reached the end of the chain
+            //Now move onto traversing unseen parents, or break if we dont have any other paths to search
+            if unseen_parents.len() == 0 {
+                // debug!("No more unseen items within parent block");
+                Ok(true)
+            } else {
+                // debug!("Moving onto unseen fork items within parent block");
+                *search_position = unseen_parents.remove(0);
+                Ok(false)
+            }
+        } else {
+            //Do the fork traversals
+            let mut parents = diff.parents.unwrap();
+            //Check if all parents have already been seen, if so then break or move onto next unseen parents
+            //TODO; we should use a seen set here versus array iter
+            if parents.iter().all(|val| seen.contains(val)) {
+                if unseen_parents.len() == 0 {
+                    // debug!("Parents of item seen and unseen 0");
+                    Ok(true)
+                } else {
+                    // debug!("last moving onto unseen");
+                    *search_position = unseen_parents.remove(0);
+                    Ok(false)
+                }
+            } else {
+                *search_position = SearchPosition {
+                    hash: parents.remove(0),
+                    is_unseen: false,
+                };
+                // debug!("Appending parents to look up");
+                unseen_parents.append(
+                    &mut parents
+                        .into_iter()
+                        .map(|val| SearchPosition {
+                            hash: val,
+                            is_unseen: true,
+                        })
+                        .collect(),
+                );
+                Ok(false)
+            }
+        }
+    }
+}
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/link_adapter/test_graphs.rs b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/link_adapter/test_graphs.rs
new file mode 100644
index 000000000..fea27288c
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/link_adapter/test_graphs.rs
@@ -0,0 +1,1495 @@
+lazy_static! {
+    pub static ref LATE_JOIN: String = String::from(r#"digraph {
+        1 [ label = "1" ]
+        2 [ label = "2" ]
+        3 [ label = "3" ]
+        4 [ label = "4" ]
+        5 [ label = "5" ]
+        6 [ label = "6" ]
+        7 [ label = "7" ]
+        8 [ label = "8" ]
+        9 [ label = "9" ]
+        10 [ label = "10" ]
+        11 [ label = "11" ]
+        12 [ label = "12" ]
+        13 [ label = "13" ]
+        14 [ label = "14" ]
+        15 [ label = "15" ]
+        16 [ label = "16" ]
+        17 [ label = "17" ]
+        18 [ label = "18" ]
+        19 [ label = "19" ]
+        20 [ label = "20" ]
+        21 [ label = "21" ]
+        22 [ label = "22" ]
+        23 [ label = "23" ]
+        24 [ label = "24" ]
+        25 [ label = "25" ]
+        26 [ label = "26" ]
+        27 [ label = "27" ]
+        28 [ label = "28" ]
+        29 [ label = "29" ]
+        30 [ label = "30" ]
+        31 [ label = "31" ]
+        32 [ label = "32" ]
+        33 [ label = "33" ]
+        34 [ label = "34" ]
+        35 [ label = "35" ]
+        36 [ label = "36" ]
+        37 [ label = "37" ]
+        38 [ label = "38" ]
+        39 [ label = "39" ]
+        40 [ label = "40" ]
+        41 [ label = "41" ]
+        42 [ label = "42" ]
+        43 [ label = "43" ]
+        44 [ label = "44" ]
+        45 [ label = "45" ]
+        46 [ label = "46" ]
+        47 [ label = "47" ]
+        48 [ label = "48" ]
+        49 [ label = "49" ]
+        50 [ label = "50" ]
+        51 [ label = "51" ]
+        52 [ label = "52" ]
+        53 [ label = "53" ]
+        54 [ label = "54" ]
+        55 [ label = "55" ]
+        56 [ label = "56" ]
+        57 [ label = "57" ]
+        58 [ label = "58" ]
+        59 [ label = "59" ]
+        60 [ label = "60" ]
+        61 [ label = "61" ]
+        62 [ label = "62" ]
+        63 [ label = "63" ]
+        64 [ label = "64" ]
+        65 [ label = "65" ]
+        66 [ label = "66" ]
+        67 [ label = "67" ]
+        68 [ label = "68" ]
+        69 [ label = "69" ]
+        70 [ label = "70" ]
+        71 [ label = "71" ]
+        72 [ label = "72" ]
+        73 [ label = "73" ]
+        74 [ label = "74" ]
+        75 [ label = "75" ]
+        76 [ label = "76" ]
+        77 [ label = "77" ]
+        78 [ label = "78" ]
+        79 [ label = "79" ]
+        80 [ label = "80" ]
+        81 [ label = "81" ]
+        82 [ label = "82" ]
+        83 [ label = "83" ]
+        84 [ label = "84" ]
+        85 [ label = "85" ]
+        86 [ label = "86" ]
+        87 [ label = "87" ]
+        88 [ label = "88" ]
+        89 [ label = "89" ]
+        90 [ label = "90" ]
+        91 [ label = "91" ]
+        92 [ label = "92" ]
+        93 [ label = "93" ]
+        94 [ label = "94" ]
+        95 [ label = "95" ]
+        96 [ label = "96" ]
+        97 [ label = "97" ]
+        98 [ label = "98" ]
+        99 [ label = "99" ]
+        100 [ label = "100" ]
+        101 [ label = "101" ]
+        102 [ label = "102" ]
+        103 [ label = "103" ]
+        104 [ label = "104" ]
+        105 [ label = "105" ]
+        106 [ label = "106" ]
+        107 [ label = "107" ]
+        108 [ label = "108" ]
+        109 [ label = "109" ]
+        110 [ label = "110" ]
+        111 [ label = "111" ]
+        112 [ label = "112" ]
+        113 [ label = "113" ]
+        114 [ label = "114" ]
+        115 [ label = "115" ]
+        116 [ label = "116" ]
+        117 [ label = "117" ]
+        118 [ label = "118" ]
+        119 [ label = "119" ]
+        120 [ label = "120" ]
+        121 [ label = "121" ]
+        122 [ label = "122" ]
+        123 [ label = "123" ]
+        124 [ label = "124" ]
+        125 [ label = "125" ]
+        126 [ label = "126" ]
+        127 [ label = "127" ]
+        128 [ label = "128" ]
+        129 [ label = "129" ]
+        130 [ label = "130" ]
+        131 [ label = "131" ]
+        132 [ label = "132" ]
+        133 [ label = "133" ]
+        134 [ label = "134" ]
+        135 [ label = "135" ]
+        136 [ label = "136" ]
+        137 [ label = "137" ]
+        138 [ label = "138" ]
+        139 [ label = "139" ]
+        140 [ label = "140" ]
+        141 [ label = "141" ]
+        142 [ label = "142" ]
+        143 [ label = "143" ]
+        144 [ label = "144" ]
+        145 [ label = "145" ]
+        146 [ label = "146" ]
+        147 [ label = "147" ]
+        148 [ label = "148" ]
+        149 [ label = "149" ]
+        150 [ label = "150" ]
+        151 [ label = "151" ]
+        152 [ label = "152" ]
+        153 [ label = "153" ]
+        154 [ label = "154" ]
+        155 [ label = "155" ]
+        156 [ label = "156" ]
+        157 [ label = "157" ]
+        158 [ label = "158" ]
+        159 [ label = "159" ]
+        160 [ label = "160" ]
+        161 [ label = "161" ]
+        162 [ label = "162" ]
+        163 [ label = "163" ]
+        164 [ label = "164" ]
+        165 [ label = "165" ]
+        166 [ label = "166" ]
+        167 [ label = "167" ]
+        168 [ label = "168" ]
+        169 [ label = "169" ]
+        170 [ label = "170" ]
+        171 [ label = "171" ]
+        172 [ label = "172" ]
+        173 [ label = "173" ]
+        174 [ label = "174" ]
+        175 [ label = "175" ]
+        176 [ label = "176" ]
+        177 [ label = "177" ]
+        178 [ label = "178" ]
+        179 [ label = "179" ]
+        180 [ label = "180" ]
+        181 [ label = "181" ]
+        182 [ label = "182" ]
+        183 [ label = "183" ]
+        184 [ label = "184" ]
+        185 [ label = "185" ]
+        186 [ label = "186" ]
+        187 [ label = "187" ]
+        188 [ label = "188" ]
+        189 [ label = "189" ]
+        190 [ label = "190" ]
+        191 [ label = "191" ]
+        192 [ label = "192" ]
+        193 [ label = "193" ]
+        194 [ label = "194" ]
+        195 [ label = "195" ]
+        196 [ label = "196" ]
+        197 [ label = "197" ]
+        198 [ label = "198" ]
+        199 [ label = "199" ]
+        200 [ label = "200" ]
+        201 [ label = "201" ]
+        202 [ label = "202" ]
+        203 [ label = "203" ]
+        204 [ label = "204" ]
+        205 [ label = "205" ]
+        206 [ label = "206" ]
+        207 [ label = "207" ]
+        208 [ label = "208" ]
+        209 [ label = "209" ]
+        210 [ label = "210" ]
+        211 [ label = "211" ]
+        212 [ label = "212" ]
+        213 [ label = "213" ]
+        214 [ label = "214" ]
+        215 [ label = "215" ]
+        216 [ label = "216" ]
+        217 [ label = "217" ]
+        218 [ label = "218" ]
+        219 [ label = "219" ]
+        220 [ label = "220" ]
+        221 [ label = "221" ]
+        222 [ label = "222" ]
+        223 [ label = "223" ]
+        224 [ label = "224" ]
+        225 [ label = "225" ]
+        226 [ label = "226" ]
+        227 [ label = "227" ]
+        228 [ label = "228" ]
+        229 [ label = "229" ]
+        230 [ label = "230" ]
+        231 [ label = "231" ]
+        232 [ label = "232" ]
+        233 [ label = "233" ]
+        234 [ label = "234" ]
+        235 [ label = "235" ]
+        236 [ label = "236" ]
+        237 [ label = "237" ]
+        238 [ label = "238" ]
+        239 [ label = "239" ]
+        240 [ label = "240" ]
+        241 [ label = "241" ]
+        242 [ label = "242" ]
+        243 [ label = "243" ]
+        244 [ label = "244" ]
+        245 [ label = "245" ]
+        246 [ label = "246" ]
+        247 [ label = "247" ]
+        248 [ label = "248" ]
+        249 [ label = "249" ]
+        250 [ label = "250" ]
+        251 [ label = "251" ]
+        252 [ label = "252" ]
+        253 [ label = "253" ]
+        254 [ label = "254" ]
+        255 [ label = "255" ]
+        256 [ label = "256" ]
+        257 [ label = "257" ]
+        258 [ label = "258" ]
+        259 [ label = "259" ]
+        260 [ label = "260" ]
+        261 [ label = "261" ]
+        262 [ label = "262" ]
+        263 [ label = "263" ]
+        264 [ label = "264" ]
+        265 [ label = "265" ]
+        266 [ label = "266" ]
+        267 [ label = "267" ]
+        268 [ label = "268" ]
+        269 [ label = "269" ]
+        270 [ label = "270" ]
+        271 [ label = "271" ]
+        272 [ label = "272" ]
+        273 [ label = "273" ]
+        274 [ label = "274" ]
+        275 [ label = "275" ]
+        276 [ label = "276" ]
+        277 [ label = "277" ]
+        278 [ label = "278" ]
+        279 [ label = "279" ]
+        280 [ label = "280" ]
+        281 [ label = "281" ]
+        282 [ label = "282" ]
+        283 [ label = "283" ]
+        284 [ label = "284" ]
+        285 [ label = "285" ]
+        286 [ label = "286" ]
+        287 [ label = "287" ]
+        288 [ label = "288" ]
+        289 [ label = "289" ]
+        290 [ label = "290" ]
+        291 [ label = "291" ]
+        292 [ label = "292" ]
+        293 [ label = "293" ]
+        294 [ label = "294" ]
+        295 [ label = "295" ]
+        296 [ label = "296" ]
+        297 [ label = "297" ]
+        298 [ label = "298" ]
+        299 [ label = "299" ]
+        300 [ label = "300" ]
+        301 [ label = "301" ]
+        302 [ label = "302" ]
+        303 [ label = "303" ]
+        304 [ label = "304" ]
+        305 [ label = "305" ]
+        306 [ label = "306" ]
+        307 [ label = "307" ]
+        308 [ label = "308" ]
+        309 [ label = "309" ]
+        310 [ label = "310" ]
+        311 [ label = "311" ]
+        312 [ label = "312" ]
+        313 [ label = "313" ]
+        314 [ label = "314" ]
+        3 -> 2 [ label = "()" ]
+        4 -> 3 [ label = "()" ]
+        5 -> 4 [ label = "()" ]
+        6 -> 5 [ label = "()" ]
+        7 -> 6 [ label = "()" ]
+        8 -> 7 [ label = "()" ]
+        9 -> 8 [ label = "()" ]
+        11 -> 10 [ label = "()" ]
+        11 -> 9 [ label = "()" ]
+        12 -> 10 [ label = "()" ]
+        13 -> 12 [ label = "()" ]
+        14 -> 13 [ label = "()" ]
+        14 -> 11 [ label = "()" ]
+        15 -> 14 [ label = "()" ]
+        16 -> 15 [ label = "()" ]
+        17 -> 16 [ label = "()" ]
+        18 -> 17 [ label = "()" ]
+        19 -> 18 [ label = "()" ]
+        20 -> 19 [ label = "()" ]
+        21 -> 16 [ label = "()" ]
+        22 -> 21 [ label = "()" ]
+        23 -> 20 [ label = "()" ]
+        23 -> 22 [ label = "()" ]
+        24 -> 23 [ label = "()" ]
+        25 -> 24 [ label = "()" ]
+        26 -> 25 [ label = "()" ]
+        27 -> 26 [ label = "()" ]
+        28 -> 25 [ label = "()" ]
+        29 -> 28 [ label = "()" ]
+        30 -> 29 [ label = "()" ]
+        30 -> 27 [ label = "()" ]
+        32 -> 31 [ label = "()" ]
+        32 -> 30 [ label = "()" ]
+        33 -> 32 [ label = "()" ]
+        34 -> 32 [ label = "()" ]
+        35 -> 34 [ label = "()" ]
+        35 -> 33 [ label = "()" ]
+        36 -> 35 [ label = "()" ]
+        37 -> 36 [ label = "()" ]
+        38 -> 37 [ label = "()" ]
+        39 -> 38 [ label = "()" ]
+        40 -> 35 [ label = "()" ]
+        41 -> 40 [ label = "()" ]
+        42 -> 39 [ label = "()" ]
+        42 -> 41 [ label = "()" ]
+        43 -> 42 [ label = "()" ]
+        44 -> 43 [ label = "()" ]
+        45 -> 44 [ label = "()" ]
+        46 -> 45 [ label = "()" ]
+        47 -> 46 [ label = "()" ]
+        48 -> 47 [ label = "()" ]
+        49 -> 48 [ label = "()" ]
+        50 -> 49 [ label = "()" ]
+        51 -> 50 [ label = "()" ]
+        52 -> 51 [ label = "()" ]
+        53 -> 52 [ label = "()" ]
+        54 -> 53 [ label = "()" ]
+        55 -> 54 [ label = "()" ]
+        56 -> 55 [ label = "()" ]
+        57 -> 56 [ label = "()" ]
+        58 -> 57 [ label = "()" ]
+        59 -> 58 [ label = "()" ]
+        60 -> 59 [ label = "()" ]
+        61 -> 60 [ label = "()" ]
+        62 -> 61 [ label = "()" ]
+        63 -> 62 [ label = "()" ]
+        64 -> 63 [ label = "()" ]
+        65 -> 64 [ label = "()" ]
+        66 -> 65 [ label = "()" ]
+        67 -> 66 [ label = "()" ]
+        68 -> 67 [ label = "()" ]
+        69 -> 68 [ label = "()" ]
+        70 -> 69 [ label = "()" ]
+        71 -> 70 [ label = "()" ]
+        72 -> 71 [ label = "()" ]
+        73 -> 72 [ label = "()" ]
+        74 -> 73 [ label = "()" ]
+        75 -> 74 [ label = "()" ]
+        76 -> 75 [ label = "()" ]
+        77 -> 76 [ label = "()" ]
+        78 -> 77 [ label = "()" ]
+        79 -> 78 [ label = "()" ]
+        80 -> 79 [ label = "()" ]
+        81 -> 80 [ label = "()" ]
+        82 -> 81 [ label = "()" ]
+        83 -> 82 [ label = "()" ]
+        84 -> 83 [ label = "()" ]
+        85 -> 84 [ label = "()" ]
+        86 -> 85 [ label = "()" ]
+        87 -> 86 [ label = "()" ]
+        88 -> 87 [ label = "()" ]
+        89 -> 88 [ label = "()" ]
+        90 -> 89 [ label = "()" ]
+        91 -> 90 [ label = "()" ]
+        92 -> 91 [ label = "()" ]
+        93 -> 92 [ label = "()" ]
+        94 -> 93 [ label = "()" ]
+        95 -> 94 [ label = "()" ]
+        96 -> 95 [ label = "()" ]
+        97 -> 96 [ label = "()" ]
+        98 -> 97 [ label = "()" ]
+        99 -> 98 [ label = "()" ]
+        100 -> 99 [ label = "()" ]
+        101 -> 100 [ label = "()" ]
+        102 -> 101 [ label = "()" ]
+        103 -> 102 [ label = "()" ]
+        104 -> 103 [ label = "()" ]
+        105 -> 104 [ label = "()" ]
+        106 -> 105 [ label = "()" ]
+        107 -> 106 [ label = "()" ]
+        108 -> 107 [ label = "()" ]
+        109 -> 108 [ label = "()" ]
+        110 -> 81 [ label = "()" ]
+        111 -> 110 [ label = "()" ]
+        112 -> 111 [ label = "()" ]
+        113 -> 100 [ label = "()" ]
+        113 -> 112 [ label = "()" ]
+        114 -> 109 [ label = "()" ]
+        114 -> 113 [ label = "()" ]
+        115 -> 1 [ label = "()" ]
+        115 -> 114 [ label = "()" ]
+        116 -> 1 [ label = "()" ]
+        116 -> 114 [ label = "()" ]
+        117 -> 115 [ label = "()" ]
+        117 -> 116 [ label = "()" ]
+        118 -> 117 [ label = "()" ]
+        119 -> 118 [ label = "()" ]
+        120 -> 119 [ label = "()" ]
+        121 -> 120 [ label = "()" ]
+        122 -> 121 [ label = "()" ]
+        123 -> 122 [ label = "()" ]
+        124 -> 123 [ label = "()" ]
+        125 -> 124 [ label = "()" ]
+        126 -> 125 [ label = "()" ]
+        127 -> 126 [ label = "()" ]
+        128 -> 127 [ label = "()" ]
+        129 -> 128 [ label = "()" ]
+        130 -> 129 [ label = "()" ]
+        131 -> 130 [ label = "()" ]
+        132 -> 131 [ label = "()" ]
+        133 -> 132 [ label = "()" ]
+        134 -> 133 [ label = "()" ]
+        135 -> 134 [ label = "()" ]
+        136 -> 135 [ label = "()" ]
+        137 -> 136 [ label = "()" ]
+        138 -> 115 [ label = "()" ]
+        138 -> 116 [ label = "()" ]
+        139 -> 138 [ label = "()" ]
+        140 -> 127 [ label = "()" ]
+        140 -> 139 [ label = "()" ]
+        141 -> 139 [ label = "()" ]
+        142 -> 137 [ label = "()" ]
+        142 -> 141 [ label = "()" ]
+        143 -> 142 [ label = "()" ]
+        143 -> 140 [ label = "()" ]
+        144 -> 143 [ label = "()" ]
+        145 -> 144 [ label = "()" ]
+        146 -> 145 [ label = "()" ]
+        147 -> 146 [ label = "()" ]
+        148 -> 147 [ label = "()" ]
+        149 -> 148 [ label = "()" ]
+        150 -> 149 [ label = "()" ]
+        151 -> 150 [ label = "()" ]
+        152 -> 151 [ label = "()" ]
+        153 -> 152 [ label = "()" ]
+        154 -> 153 [ label = "()" ]
+        155 -> 154 [ label = "()" ]
+        156 -> 155 [ label = "()" ]
+        157 -> 156 [ label = "()" ]
+        158 -> 157 [ label = "()" ]
+        159 -> 158 [ label = "()" ]
+        160 -> 159 [ label = "()" ]
+        161 -> 160 [ label = "()" ]
+        162 -> 161 [ label = "()" ]
+        163 -> 162 [ label = "()" ]
+        164 -> 163 [ label = "()" ]
+        165 -> 164 [ label = "()" ]
+        166 -> 165 [ label = "()" ]
+        167 -> 166 [ label = "()" ]
+        168 -> 167 [ label = "()" ]
+        169 -> 168 [ label = "()" ]
+        170 -> 169 [ label = "()" ]
+        171 -> 170 [ label = "()" ]
+        172 -> 171 [ label = "()" ]
+        173 -> 172 [ label = "()" ]
+        174 -> 173 [ label = "()" ]
+        175 -> 174 [ label = "()" ]
+        176 -> 175 [ label = "()" ]
+        177 -> 176 [ label = "()" ]
+        178 -> 177 [ label = "()" ]
+        179 -> 178 [ label = "()" ]
+        180 -> 179 [ label = "()" ]
+        181 -> 180 [ label = "()" ]
+        182 -> 181 [ label = "()" ]
+        183 -> 182 [ label = "()" ]
+        184 -> 183 [ label = "()" ]
+        185 -> 184 [ label = "()" ]
+        186 -> 185 [ label = "()" ]
+        187 -> 186 [ label = "()" ]
+        188 -> 187 [ label = "()" ]
+        189 -> 188 [ label = "()" ]
+        190 -> 189 [ label = "()" ]
+        191 -> 190 [ label = "()" ]
+        192 -> 191 [ label = "()" ]
+        193 -> 192 [ label = "()" ]
+        194 -> 193 [ label = "()" ]
+        195 -> 192 [ label = "()" ]
+        196 -> 195 [ label = "()" ]
+        197 -> 192 [ label = "()" ]
+        198 -> 197 [ label = "()" ]
+        199 -> 198 [ label = "()" ]
+        199 -> 196 [ label = "()" ]
+        200 -> 199 [ label = "()" ]
+        200 -> 194 [ label = "()" ]
+        201 -> 200 [ label = "()" ]
+        202 -> 201 [ label = "()" ]
+        203 -> 202 [ label = "()" ]
+        204 -> 203 [ label = "()" ]
+        205 -> 204 [ label = "()" ]
+        206 -> 205 [ label = "()" ]
+        207 -> 206 [ label = "()" ]
+        208 -> 207 [ label = "()" ]
+        209 -> 208 [ label = "()" ]
+        210 -> 209 [ label = "()" ]
+        211 -> 210 [ label = "()" ]
+        212 -> 211 [ label = "()" ]
+        213 -> 212 [ label = "()" ]
+        214 -> 213 [ label = "()" ]
+        215 -> 214 [ label = "()" ]
+        216 -> 215 [ label = "()" ]
+        217 -> 216 [ label = "()" ]
+        218 -> 217 [ label = "()" ]
+        219 -> 218 [ label = "()" ]
+        220 -> 219 [ label = "()" ]
+        221 -> 220 [ label = "()" ]
+        222 -> 221 [ label = "()" ]
+        223 -> 222 [ label = "()" ]
+        224 -> 223 [ label = "()" ]
+        225 -> 224 [ label = "()" ]
+        226 -> 225 [ label = "()" ]
+        227 -> 226 [ label = "()" ]
+        228 -> 227 [ label = "()" ]
+        229 -> 228 [ label = "()" ]
+        230 -> 229 [ label = "()" ]
+        231 -> 230 [ label = "()" ]
+        232 -> 231 [ label = "()" ]
+        233 -> 232 [ label = "()" ]
+        234 -> 233 [ label = "()" ]
+        235 -> 231 [ label = "()" ]
+        236 -> 235 [ label = "()" ]
+        237 -> 236 [ label = "()" ]
+        238 -> 237 [ label = "()" ]
+        239 -> 236 [ label = "()" ]
+        240 -> 239 [ label = "()" ]
+        240 -> 238 [ label = "()" ]
+        241 -> 236 [ label = "()" ]
+        242 -> 238 [ label = "()" ]
+        242 -> 241 [ label = "()" ]
+        243 -> 239 [ label = "()" ]
+        243 -> 242 [ label = "()" ]
+        244 -> 243 [ label = "()" ]
+        245 -> 234 [ label = "()" ]
+        245 -> 244 [ label = "()" ]
+        246 -> 245 [ label = "()" ]
+        247 -> 245 [ label = "()" ]
+        247 -> 240 [ label = "()" ]
+        248 -> 246 [ label = "()" ]
+        248 -> 247 [ label = "()" ]
+        249 -> 248 [ label = "()" ]
+        250 -> 249 [ label = "()" ]
+        251 -> 248 [ label = "()" ]
+        252 -> 250 [ label = "()" ]
+        252 -> 251 [ label = "()" ]
+        253 -> 250 [ label = "()" ]
+        253 -> 251 [ label = "()" ]
+        254 -> 253 [ label = "()" ]
+        254 -> 252 [ label = "()" ]
+        255 -> 254 [ label = "()" ]
+        256 -> 255 [ label = "()" ]
+        257 -> 256 [ label = "()" ]
+        258 -> 255 [ label = "()" ]
+        259 -> 258 [ label = "()" ]
+        259 -> 256 [ label = "()" ]
+        260 -> 258 [ label = "()" ]
+        261 -> 260 [ label = "()" ]
+        262 -> 260 [ label = "()" ]
+        262 -> 259 [ label = "()" ]
+        263 -> 261 [ label = "()" ]
+        263 -> 262 [ label = "()" ]
+        264 -> 263 [ label = "()" ]
+        264 -> 257 [ label = "()" ]
+        265 -> 264 [ label = "()" ]
+        266 -> 265 [ label = "()" ]
+        267 -> 266 [ label = "()" ]
+        268 -> 265 [ label = "()" ]
+        269 -> 268 [ label = "()" ]
+        269 -> 267 [ label = "()" ]
+        270 -> 269 [ label = "()" ]
+        271 -> 270 [ label = "()" ]
+        272 -> 271 [ label = "()" ]
+        273 -> 272 [ label = "()" ]
+        274 -> 273 [ label = "()" ]
+        275 -> 274 [ label = "()" ]
+        276 -> 275 [ label = "()" ]
+        277 -> 276 [ label = "()" ]
+        278 -> 277 [ label = "()" ]
+        279 -> 278 [ label = "()" ]
+        280 -> 279 [ label = "()" ]
+        281 -> 280 [ label = "()" ]
+        282 -> 281 [ label = "()" ]
+        283 -> 282 [ label = "()" ]
+        284 -> 283 [ label = "()" ]
+        285 -> 284 [ label = "()" ]
+        286 -> 285 [ label = "()" ]
+        287 -> 285 [ label = "()" ]
+        288 -> 286 [ label = "()" ]
+        288 -> 287 [ label = "()" ]
+        289 -> 288 [ label = "()" ]
+        290 -> 289 [ label = "()" ]
+        291 -> 290 [ label = "()" ]
+        292 -> 291 [ label = "()" ]
+        293 -> 292 [ label = "()" ]
+        294 -> 293 [ label = "()" ]
+        295 -> 294 [ label = "()" ]
+        296 -> 295 [ label = "()" ]
+        297 -> 296 [ label = "()" ]
+        298 -> 297 [ label = "()" ]
+        299 -> 298 [ label = "()" ]
+        300 -> 299 [ label = "()" ]
+        301 -> 300 [ label = "()" ]
+        302 -> 301 [ label = "()" ]
+        303 -> 300 [ label = "()" ]
+        304 -> 301 [ label = "()" ]
+        304 -> 303 [ label = "()" ]
+        305 -> 304 [ label = "()" ]
+        305 -> 302 [ label = "()" ]
+        306 -> 305 [ label = "()" ]
+        307 -> 306 [ label = "()" ]
+        308 -> 307 [ label = "()" ]
+        309 -> 308 [ label = "()" ]
+        310 -> 309 [ label = "()" ]
+        311 -> 310 [ label = "()" ]
+        312 -> 311 [ label = "()" ]
+        313 -> 312 [ label = "()" ]
+        }"#);
+    pub static ref LATE_JOIN2: String = String::from(r#"digraph {
+        1 [ label = "1" ]
+        2 [ label = "2" ]
+        3 [ label = "3" ]
+        4 [ label = "4" ]
+        5 [ label = "5" ]
+        6 [ label = "6" ]
+        7 [ label = "7" ]
+        8 [ label = "8" ]
+        9 [ label = "9" ]
+        10 [ label = "10" ]
+        11 [ label = "11" ]
+        12 [ label = "12" ]
+        13 [ label = "13" ]
+        14 [ label = "14" ]
+        15 [ label = "15" ]
+        16 [ label = "16" ]
+        17 [ label = "17" ]
+        18 [ label = "18" ]
+        19 [ label = "19" ]
+        20 [ label = "20" ]
+        21 [ label = "21" ]
+        22 [ label = "22" ]
+        23 [ label = "23" ]
+        24 [ label = "24" ]
+        25 [ label = "25" ]
+        26 [ label = "26" ]
+        27 [ label = "27" ]
+        28 [ label = "28" ]
+        29 [ label = "29" ]
+        30 [ label = "30" ]
+        31 [ label = "31" ]
+        32 [ label = "32" ]
+        33 [ label = "33" ]
+        34 [ label = "34" ]
+        35 [ label = "35" ]
+        36 [ label = "36" ]
+        37 [ label = "37" ]
+        38 [ label = "38" ]
+        39 [ label = "39" ]
+        40 [ label = "40" ]
+        41 [ label = "41" ]
+        42 [ label = "42" ]
+        43 [ label = "43" ]
+        44 [ label = "44" ]
+        45 [ label = "45" ]
+        46 [ label = "46" ]
+        47 [ label = "47" ]
+        48 [ label = "48" ]
+        49 [ label = "49" ]
+        50 [ label = "50" ]
+        51 [ label = "51" ]
+        52 [ label = "52" ]
+        53 [ label = "53" ]
+        54 [ label = "54" ]
+        55 [ label = "55" ]
+        56 [ label = "56" ]
+        57 [ label = "57" ]
+        58 [ label = "58" ]
+        59 [ label = "59" ]
+        60 [ label = "60" ]
+        61 [ label = "61" ]
+        62 [ label = "62" ]
+        63 [ label = "63" ]
+        64 [ label = "64" ]
+        65 [ label = "65" ]
+        66 [ label = "66" ]
+        67 [ label = "67" ]
+        68 [ label = "68" ]
+        69 [ label = "69" ]
+        70 [ label = "70" ]
+        71 [ label = "71" ]
+        72 [ label = "72" ]
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+        90 [ label = "90" ]
+        91 [ label = "91" ]
+        92 [ label = "92" ]
+        93 [ label = "93" ]
+        94 [ label = "94" ]
+        95 [ label = "95" ]
+        96 [ label = "96" ]
+        97 [ label = "97" ]
+        98 [ label = "98" ]
+        99 [ label = "99" ]
+        100 [ label = "100" ]
+        101 [ label = "101" ]
+        102 [ label = "102" ]
+        103 [ label = "103" ]
+        104 [ label = "104" ]
+        105 [ label = "105" ]
+        106 [ label = "106" ]
+        107 [ label = "107" ]
+        108 [ label = "108" ]
+        109 [ label = "109" ]
+        110 [ label = "110" ]
+        111 [ label = "111" ]
+        112 [ label = "112" ]
+        113 [ label = "113" ]
+        114 [ label = "114" ]
+        115 [ label = "115" ]
+        116 [ label = "116" ]
+        117 [ label = "117" ]
+        118 [ label = "118" ]
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+        120 [ label = "120" ]
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+        122 [ label = "122" ]
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+        143 [ label = "143" ]
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+        145 [ label = "145" ]
+        146 [ label = "146" ]
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+        148 [ label = "148" ]
+        149 [ label = "149" ]
+        150 [ label = "150" ]
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+        152 [ label = "152" ]
+        153 [ label = "153" ]
+        154 [ label = "154" ]
+        155 [ label = "155" ]
+        156 [ label = "156" ]
+        157 [ label = "157" ]
+        158 [ label = "158" ]
+        159 [ label = "159" ]
+        160 [ label = "160" ]
+        161 [ label = "161" ]
+        162 [ label = "162" ]
+        163 [ label = "163" ]
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+        176 [ label = "176" ]
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+        178 [ label = "178" ]
+        179 [ label = "179" ]
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+        189 [ label = "189" ]
+        190 [ label = "190" ]
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+        199 [ label = "199" ]
+        200 [ label = "200" ]
+        201 [ label = "201" ]
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+        203 [ label = "203" ]
+        204 [ label = "204" ]
+        205 [ label = "205" ]
+        206 [ label = "206" ]
+        207 [ label = "207" ]
+        208 [ label = "208" ]
+        209 [ label = "209" ]
+        210 [ label = "210" ]
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+        212 [ label = "212" ]
+        213 [ label = "213" ]
+        214 [ label = "214" ]
+        215 [ label = "215" ]
+        216 [ label = "216" ]
+        217 [ label = "217" ]
+        218 [ label = "218" ]
+        219 [ label = "219" ]
+        220 [ label = "220" ]
+        221 [ label = "221" ]
+        222 [ label = "222" ]
+        223 [ label = "223" ]
+        224 [ label = "224" ]
+        225 [ label = "225" ]
+        226 [ label = "226" ]
+        227 [ label = "227" ]
+        228 [ label = "228" ]
+        229 [ label = "229" ]
+        230 [ label = "230" ]
+        231 [ label = "231" ]
+        232 [ label = "232" ]
+        233 [ label = "233" ]
+        234 [ label = "234" ]
+        235 [ label = "235" ]
+        236 [ label = "236" ]
+        237 [ label = "237" ]
+        238 [ label = "238" ]
+        239 [ label = "239" ]
+        240 [ label = "240" ]
+        241 [ label = "241" ]
+        242 [ label = "242" ]
+        243 [ label = "243" ]
+        244 [ label = "244" ]
+        245 [ label = "245" ]
+        246 [ label = "246" ]
+        247 [ label = "247" ]
+        248 [ label = "248" ]
+        249 [ label = "249" ]
+        250 [ label = "250" ]
+        251 [ label = "251" ]
+        252 [ label = "252" ]
+        253 [ label = "253" ]
+        254 [ label = "254" ]
+        255 [ label = "255" ]
+        256 [ label = "256" ]
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+        258 [ label = "258" ]
+        259 [ label = "259" ]
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+        263 [ label = "263" ]
+        264 [ label = "264" ]
+        265 [ label = "265" ]
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+        268 [ label = "268" ]
+        269 [ label = "269" ]
+        270 [ label = "270" ]
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+        272 [ label = "272" ]
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+        278 [ label = "278" ]
+        279 [ label = "279" ]
+        280 [ label = "280" ]
+        281 [ label = "281" ]
+        282 [ label = "282" ]
+        283 [ label = "283" ]
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+        285 [ label = "285" ]
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+        288 [ label = "288" ]
+        289 [ label = "289" ]
+        290 [ label = "290" ]
+        291 [ label = "291" ]
+        292 [ label = "292" ]
+        293 [ label = "293" ]
+        294 [ label = "294" ]
+        295 [ label = "295" ]
+        296 [ label = "296" ]
+        297 [ label = "297" ]
+        298 [ label = "298" ]
+        299 [ label = "299" ]
+        300 [ label = "300" ]
+        301 [ label = "301" ]
+        302 [ label = "302" ]
+        303 [ label = "303" ]
+        304 [ label = "304" ]
+        6 -> 5 [ label = "()" ]
+        7 -> 6 [ label = "()" ]
+        8 -> 7 [ label = "()" ]
+        9 -> 8 [ label = "()" ]
+        10 -> 9 [ label = "()" ]
+        11 -> 10 [ label = "()" ]
+        12 -> 11 [ label = "()" ]
+        13 -> 12 [ label = "()" ]
+        14 -> 3 [ label = "()" ]
+        14 -> 13 [ label = "()" ]
+        15 -> 14 [ label = "()" ]
+        16 -> 15 [ label = "()" ]
+        17 -> 16 [ label = "()" ]
+        18 -> 17 [ label = "()" ]
+        19 -> 18 [ label = "()" ]
+        20 -> 19 [ label = "()" ]
+        21 -> 20 [ label = "()" ]
+        22 -> 2 [ label = "()" ]
+        22 -> 18 [ label = "()" ]
+        23 -> 22 [ label = "()" ]
+        24 -> 23 [ label = "()" ]
+        25 -> 24 [ label = "()" ]
+        26 -> 25 [ label = "()" ]
+        26 -> 21 [ label = "()" ]
+        27 -> 22 [ label = "()" ]
+        28 -> 24 [ label = "()" ]
+        28 -> 27 [ label = "()" ]
+        29 -> 28 [ label = "()" ]
+        30 -> 29 [ label = "()" ]
+        31 -> 30 [ label = "()" ]
+        32 -> 31 [ label = "()" ]
+        33 -> 32 [ label = "()" ]
+        33 -> 25 [ label = "()" ]
+        34 -> 32 [ label = "()" ]
+        34 -> 26 [ label = "()" ]
+        35 -> 34 [ label = "()" ]
+        36 -> 35 [ label = "()" ]
+        37 -> 36 [ label = "()" ]
+        38 -> 37 [ label = "()" ]
+        39 -> 38 [ label = "()" ]
+        40 -> 39 [ label = "()" ]
+        41 -> 40 [ label = "()" ]
+        42 -> 41 [ label = "()" ]
+        43 -> 42 [ label = "()" ]
+        44 -> 43 [ label = "()" ]
+        45 -> 34 [ label = "()" ]
+        45 -> 33 [ label = "()" ]
+        46 -> 41 [ label = "()" ]
+        46 -> 45 [ label = "()" ]
+        47 -> 44 [ label = "()" ]
+        47 -> 46 [ label = "()" ]
+        48 -> 45 [ label = "()" ]
+        48 -> 4 [ label = "()" ]
+        49 -> 41 [ label = "()" ]
+        49 -> 45 [ label = "()" ]
+        50 -> 44 [ label = "()" ]
+        50 -> 49 [ label = "()" ]
+        51 -> 47 [ label = "()" ]
+        51 -> 50 [ label = "()" ]
+        52 -> 48 [ label = "()" ]
+        52 -> 51 [ label = "()" ]
+        53 -> 52 [ label = "()" ]
+        53 -> 51 [ label = "()" ]
+        54 -> 52 [ label = "()" ]
+        55 -> 54 [ label = "()" ]
+        56 -> 52 [ label = "()" ]
+        57 -> 56 [ label = "()" ]
+        58 -> 57 [ label = "()" ]
+        59 -> 58 [ label = "()" ]
+        60 -> 59 [ label = "()" ]
+        61 -> 60 [ label = "()" ]
+        62 -> 61 [ label = "()" ]
+        63 -> 62 [ label = "()" ]
+        64 -> 63 [ label = "()" ]
+        65 -> 64 [ label = "()" ]
+        66 -> 48 [ label = "()" ]
+        66 -> 51 [ label = "()" ]
+        67 -> 53 [ label = "()" ]
+        67 -> 66 [ label = "()" ]
+        68 -> 67 [ label = "()" ]
+        68 -> 65 [ label = "()" ]
+        69 -> 68 [ label = "()" ]
+        70 -> 55 [ label = "()" ]
+        70 -> 69 [ label = "()" ]
+        71 -> 55 [ label = "()" ]
+        71 -> 68 [ label = "()" ]
+        72 -> 71 [ label = "()" ]
+        72 -> 70 [ label = "()" ]
+        74 -> 73 [ label = "()" ]
+        75 -> 74 [ label = "()" ]
+        75 -> 71 [ label = "()" ]
+        76 -> 74 [ label = "()" ]
+        77 -> 73 [ label = "()" ]
+        77 -> 55 [ label = "()" ]
+        78 -> 77 [ label = "()" ]
+        78 -> 72 [ label = "()" ]
+        79 -> 77 [ label = "()" ]
+        80 -> 79 [ label = "()" ]
+        80 -> 78 [ label = "()" ]
+        81 -> 79 [ label = "()" ]
+        82 -> 81 [ label = "()" ]
+        83 -> 82 [ label = "()" ]
+        84 -> 83 [ label = "()" ]
+        85 -> 84 [ label = "()" ]
+        85 -> 80 [ label = "()" ]
+        86 -> 84 [ label = "()" ]
+        87 -> 86 [ label = "()" ]
+        88 -> 87 [ label = "()" ]
+        89 -> 88 [ label = "()" ]
+        90 -> 89 [ label = "()" ]
+        90 -> 85 [ label = "()" ]
+        91 -> 89 [ label = "()" ]
+        92 -> 91 [ label = "()" ]
+        93 -> 92 [ label = "()" ]
+        94 -> 93 [ label = "()" ]
+        95 -> 94 [ label = "()" ]
+        96 -> 95 [ label = "()" ]
+        97 -> 96 [ label = "()" ]
+        98 -> 97 [ label = "()" ]
+        99 -> 98 [ label = "()" ]
+        100 -> 99 [ label = "()" ]
+        101 -> 100 [ label = "()" ]
+        102 -> 101 [ label = "()" ]
+        103 -> 102 [ label = "()" ]
+        103 -> 68 [ label = "()" ]
+        104 -> 93 [ label = "()" ]
+        104 -> 90 [ label = "()" ]
+        105 -> 102 [ label = "()" ]
+        105 -> 104 [ label = "()" ]
+        106 -> 103 [ label = "()" ]
+        106 -> 105 [ label = "()" ]
+        107 -> 1 [ label = "()" ]
+        107 -> 106 [ label = "()" ]
+        108 -> 107 [ label = "()" ]
+        108 -> 106 [ label = "()" ]
+        109 -> 108 [ label = "()" ]
+        110 -> 108 [ label = "()" ]
+        111 -> 109 [ label = "()" ]
+        111 -> 110 [ label = "()" ]
+        112 -> 110 [ label = "()" ]
+        113 -> 74 [ label = "()" ]
+        113 -> 112 [ label = "()" ]
+        114 -> 112 [ label = "()" ]
+        114 -> 111 [ label = "()" ]
+        115 -> 74 [ label = "()" ]
+        115 -> 114 [ label = "()" ]
+        116 -> 74 [ label = "()" ]
+        116 -> 114 [ label = "()" ]
+        117 -> 116 [ label = "()" ]
+        117 -> 115 [ label = "()" ]
+        118 -> 117 [ label = "()" ]
+        118 -> 113 [ label = "()" ]
+        119 -> 113 [ label = "()" ]
+        119 -> 116 [ label = "()" ]
+        120 -> 117 [ label = "()" ]
+        120 -> 119 [ label = "()" ]
+        121 -> 120 [ label = "()" ]
+        121 -> 75 [ label = "()" ]
+        122 -> 121 [ label = "()" ]
+        122 -> 118 [ label = "()" ]
+        123 -> 122 [ label = "()" ]
+        123 -> 113 [ label = "()" ]
+        124 -> 123 [ label = "()" ]
+        125 -> 124 [ label = "()" ]
+        126 -> 124 [ label = "()" ]
+        127 -> 125 [ label = "()" ]
+        127 -> 126 [ label = "()" ]
+        128 -> 127 [ label = "()" ]
+        129 -> 123 [ label = "()" ]
+        130 -> 129 [ label = "()" ]
+        131 -> 130 [ label = "()" ]
+        132 -> 131 [ label = "()" ]
+        133 -> 132 [ label = "()" ]
+        134 -> 133 [ label = "()" ]
+        135 -> 134 [ label = "()" ]
+        136 -> 135 [ label = "()" ]
+        137 -> 136 [ label = "()" ]
+        138 -> 137 [ label = "()" ]
+        139 -> 138 [ label = "()" ]
+        140 -> 139 [ label = "()" ]
+        141 -> 140 [ label = "()" ]
+        142 -> 141 [ label = "()" ]
+        143 -> 142 [ label = "()" ]
+        144 -> 143 [ label = "()" ]
+        145 -> 144 [ label = "()" ]
+        146 -> 145 [ label = "()" ]
+        147 -> 146 [ label = "()" ]
+        148 -> 147 [ label = "()" ]
+        149 -> 148 [ label = "()" ]
+        150 -> 149 [ label = "()" ]
+        151 -> 150 [ label = "()" ]
+        152 -> 151 [ label = "()" ]
+        153 -> 152 [ label = "()" ]
+        154 -> 153 [ label = "()" ]
+        155 -> 154 [ label = "()" ]
+        156 -> 155 [ label = "()" ]
+        157 -> 156 [ label = "()" ]
+        158 -> 157 [ label = "()" ]
+        159 -> 158 [ label = "()" ]
+        160 -> 159 [ label = "()" ]
+        161 -> 129 [ label = "()" ]
+        161 -> 128 [ label = "()" ]
+        162 -> 161 [ label = "()" ]
+        162 -> 128 [ label = "()" ]
+        163 -> 162 [ label = "()" ]
+        163 -> 128 [ label = "()" ]
+        164 -> 163 [ label = "()" ]
+        165 -> 164 [ label = "()" ]
+        166 -> 130 [ label = "()" ]
+        166 -> 165 [ label = "()" ]
+        167 -> 165 [ label = "()" ]
+        168 -> 167 [ label = "()" ]
+        169 -> 168 [ label = "()" ]
+        170 -> 166 [ label = "()" ]
+        170 -> 169 [ label = "()" ]
+        171 -> 170 [ label = "()" ]
+        172 -> 171 [ label = "()" ]
+        173 -> 172 [ label = "()" ]
+        174 -> 168 [ label = "()" ]
+        175 -> 171 [ label = "()" ]
+        175 -> 174 [ label = "()" ]
+        176 -> 175 [ label = "()" ]
+        177 -> 176 [ label = "()" ]
+        178 -> 172 [ label = "()" ]
+        178 -> 177 [ label = "()" ]
+        179 -> 173 [ label = "()" ]
+        179 -> 178 [ label = "()" ]
+        180 -> 179 [ label = "()" ]
+        180 -> 177 [ label = "()" ]
+        181 -> 76 [ label = "()" ]
+        181 -> 180 [ label = "()" ]
+        182 -> 181 [ label = "()" ]
+        182 -> 180 [ label = "()" ]
+        183 -> 181 [ label = "()" ]
+        183 -> 180 [ label = "()" ]
+        184 -> 183 [ label = "()" ]
+        184 -> 180 [ label = "()" ]
+        185 -> 184 [ label = "()" ]
+        185 -> 182 [ label = "()" ]
+        186 -> 185 [ label = "()" ]
+        187 -> 186 [ label = "()" ]
+        188 -> 187 [ label = "()" ]
+        189 -> 188 [ label = "()" ]
+        190 -> 189 [ label = "()" ]
+        191 -> 190 [ label = "()" ]
+        192 -> 191 [ label = "()" ]
+        193 -> 192 [ label = "()" ]
+        194 -> 134 [ label = "()" ]
+        194 -> 193 [ label = "()" ]
+        195 -> 134 [ label = "()" ]
+        195 -> 191 [ label = "()" ]
+        196 -> 195 [ label = "()" ]
+        196 -> 193 [ label = "()" ]
+        197 -> 195 [ label = "()" ]
+        197 -> 193 [ label = "()" ]
+        198 -> 197 [ label = "()" ]
+        198 -> 194 [ label = "()" ]
+        199 -> 198 [ label = "()" ]
+        200 -> 198 [ label = "()" ]
+        200 -> 196 [ label = "()" ]
+        201 -> 199 [ label = "()" ]
+        201 -> 200 [ label = "()" ]
+        202 -> 201 [ label = "()" ]
+        203 -> 202 [ label = "()" ]
+        204 -> 201 [ label = "()" ]
+        204 -> 200 [ label = "()" ]
+        205 -> 203 [ label = "()" ]
+        205 -> 204 [ label = "()" ]
+        206 -> 205 [ label = "()" ]
+        206 -> 204 [ label = "()" ]
+        207 -> 206 [ label = "()" ]
+        208 -> 206 [ label = "()" ]
+        208 -> 204 [ label = "()" ]
+        209 -> 185 [ label = "()" ]
+        210 -> 209 [ label = "()" ]
+        211 -> 195 [ label = "()" ]
+        211 -> 210 [ label = "()" ]
+        212 -> 201 [ label = "()" ]
+        212 -> 211 [ label = "()" ]
+        213 -> 212 [ label = "()" ]
+        213 -> 206 [ label = "()" ]
+        214 -> 213 [ label = "()" ]
+        214 -> 208 [ label = "()" ]
+        215 -> 214 [ label = "()" ]
+        215 -> 208 [ label = "()" ]
+        216 -> 212 [ label = "()" ]
+        216 -> 207 [ label = "()" ]
+        217 -> 215 [ label = "()" ]
+        217 -> 216 [ label = "()" ]
+        218 -> 214 [ label = "()" ]
+        218 -> 216 [ label = "()" ]
+        219 -> 218 [ label = "()" ]
+        219 -> 217 [ label = "()" ]
+        220 -> 219 [ label = "()" ]
+        220 -> 215 [ label = "()" ]
+        221 -> 220 [ label = "()" ]
+        221 -> 215 [ label = "()" ]
+        222 -> 221 [ label = "()" ]
+        222 -> 218 [ label = "()" ]
+        223 -> 221 [ label = "()" ]
+        223 -> 217 [ label = "()" ]
+        224 -> 222 [ label = "()" ]
+        224 -> 223 [ label = "()" ]
+        225 -> 224 [ label = "()" ]
+        225 -> 223 [ label = "()" ]
+        226 -> 225 [ label = "()" ]
+        227 -> 225 [ label = "()" ]
+        228 -> 227 [ label = "()" ]
+        229 -> 228 [ label = "()" ]
+        230 -> 227 [ label = "()" ]
+        230 -> 226 [ label = "()" ]
+        231 -> 230 [ label = "()" ]
+        231 -> 229 [ label = "()" ]
+        232 -> 231 [ label = "()" ]
+        232 -> 228 [ label = "()" ]
+        233 -> 232 [ label = "()" ]
+        233 -> 229 [ label = "()" ]
+        234 -> 232 [ label = "()" ]
+        234 -> 229 [ label = "()" ]
+        235 -> 234 [ label = "()" ]
+        235 -> 233 [ label = "()" ]
+        236 -> 235 [ label = "()" ]
+        237 -> 236 [ label = "()" ]
+        238 -> 237 [ label = "()" ]
+        239 -> 238 [ label = "()" ]
+        240 -> 239 [ label = "()" ]
+        241 -> 240 [ label = "()" ]
+        242 -> 241 [ label = "()" ]
+        243 -> 242 [ label = "()" ]
+        244 -> 243 [ label = "()" ]
+        245 -> 244 [ label = "()" ]
+        246 -> 245 [ label = "()" ]
+        247 -> 246 [ label = "()" ]
+        248 -> 246 [ label = "()" ]
+        249 -> 248 [ label = "()" ]
+        249 -> 247 [ label = "()" ]
+        250 -> 249 [ label = "()" ]
+        250 -> 247 [ label = "()" ]
+        251 -> 250 [ label = "()" ]
+        252 -> 250 [ label = "()" ]
+        253 -> 252 [ label = "()" ]
+        254 -> 251 [ label = "()" ]
+        254 -> 253 [ label = "()" ]
+        255 -> 254 [ label = "()" ]
+        256 -> 255 [ label = "()" ]
+        257 -> 256 [ label = "()" ]
+        258 -> 257 [ label = "()" ]
+        259 -> 258 [ label = "()" ]
+        260 -> 259 [ label = "()" ]
+        261 -> 260 [ label = "()" ]
+        262 -> 261 [ label = "()" ]
+        263 -> 262 [ label = "()" ]
+        264 -> 263 [ label = "()" ]
+        265 -> 264 [ label = "()" ]
+        266 -> 265 [ label = "()" ]
+        267 -> 263 [ label = "()" ]
+        268 -> 267 [ label = "()" ]
+        268 -> 266 [ label = "()" ]
+        269 -> 250 [ label = "()" ]
+        270 -> 269 [ label = "()" ]
+        270 -> 268 [ label = "()" ]
+        271 -> 137 [ label = "()" ]
+        271 -> 270 [ label = "()" ]
+        272 -> 139 [ label = "()" ]
+        272 -> 271 [ label = "()" ]
+        273 -> 272 [ label = "()" ]
+        274 -> 273 [ label = "()" ]
+        275 -> 274 [ label = "()" ]
+        276 -> 275 [ label = "()" ]
+        277 -> 276 [ label = "()" ]
+        278 -> 270 [ label = "()" ]
+        278 -> 268 [ label = "()" ]
+        279 -> 278 [ label = "()" ]
+        279 -> 268 [ label = "()" ]
+        280 -> 279 [ label = "()" ]
+        281 -> 280 [ label = "()" ]
+        282 -> 281 [ label = "()" ]
+        283 -> 282 [ label = "()" ]
+        284 -> 283 [ label = "()" ]
+        285 -> 284 [ label = "()" ]
+        286 -> 285 [ label = "()" ]
+        287 -> 278 [ label = "()" ]
+        287 -> 268 [ label = "()" ]
+        288 -> 286 [ label = "()" ]
+        288 -> 287 [ label = "()" ]
+        289 -> 288 [ label = "()" ]
+        289 -> 279 [ label = "()" ]
+        290 -> 154 [ label = "()" ]
+        290 -> 289 [ label = "()" ]
+        291 -> 160 [ label = "()" ]
+        291 -> 290 [ label = "()" ]
+        292 -> 289 [ label = "()" ]
+        293 -> 292 [ label = "()" ]
+        294 -> 293 [ label = "()" ]
+        295 -> 294 [ label = "()" ]
+        296 -> 269 [ label = "()" ]
+        297 -> 296 [ label = "()" ]
+        298 -> 297 [ label = "()" ]
+        299 -> 298 [ label = "()" ]
+        300 -> 299 [ label = "()" ]
+        300 -> 295 [ label = "()" ]
+        301 -> 291 [ label = "()" ]
+        301 -> 300 [ label = "()" ]
+        
+        304 -> 303 [ label = "()" ]
+        303 -> 302 [ label = "()" ]
+    }"#);
+    pub static ref HIGH_COMPLEX_GRAPH: String = String::from(r#"digraph {
+        1 [ label = "1" ]
+        2 [ label = "2" ]
+        3 [ label = "3" ]
+        4 [ label = "4" ]
+        5 [ label = "5" ]
+        6 [ label = "6" ]
+        7 [ label = "7" ]
+        8 [ label = "8" ]
+        9 [ label = "9" ]
+        10 [ label = "10" ]
+        11 [ label = "11" ]
+        12 [ label = "12" ]
+        13 [ label = "13" ]
+        14 [ label = "14" ]
+        15 [ label = "15" ]
+        16 [ label = "16" ]
+        17 [ label = "17" ]
+        18 [ label = "18" ]
+        19 [ label = "19" ]
+        20 [ label = "20" ]
+        21 [ label = "21" ]
+        22 [ label = "22" ]
+        23 [ label = "23" ]
+        24 [ label = "24" ]
+        25 [ label = "25" ]
+        26 [ label = "26" ]
+        27 [ label = "27" ]
+        28 [ label = "28" ]
+        29 [ label = "29" ]
+        30 [ label = "30" ]
+        31 [ label = "31" ]
+        32 [ label = "32" ]
+        33 [ label = "33" ]
+        34 [ label = "34" ]
+        35 [ label = "35" ]
+        36 [ label = "36" ]
+        37 [ label = "37" ]
+        38 [ label = "38" ]
+        39 [ label = "39" ]
+        40 [ label = "40" ]
+        41 [ label = "41" ]
+        42 [ label = "42" ]
+        43 [ label = "43" ]
+        44 [ label = "44" ]
+        45 [ label = "45" ]
+        46 [ label = "46" ]
+        47 [ label = "47" ]
+        48 [ label = "48" ]
+        49 [ label = "49" ]
+        50 [ label = "50" ]
+        51 [ label = "51" ]
+        52 [ label = "52" ]
+        53 [ label = "53" ]
+        54 [ label = "54" ]
+        55 [ label = "55" ]
+        2 -> 1 [ label = "()" ]
+        5 -> 4 [ label = "()" ]
+        6 -> 5 [ label = "()" ]
+        7 -> 6 [ label = "()" ]
+        8 -> 7 [ label = "()" ]
+        9 -> 8 [ label = "()" ]
+        10 -> 9 [ label = "()" ]
+        11 -> 10 [ label = "()" ]
+        12 -> 11 [ label = "()" ]
+        13 -> 3 [ label = "()" ]
+        13 -> 12 [ label = "()" ]
+        14 -> 13 [ label = "()" ]
+        15 -> 14 [ label = "()" ]
+        16 -> 15 [ label = "()" ]
+        18 -> 17 [ label = "()" ]
+        18 -> 16 [ label = "()" ]
+        19 -> 18 [ label = "()" ]
+        20 -> 19 [ label = "()" ]
+        21 -> 20 [ label = "()" ]
+        22 -> 2 [ label = "()" ]
+        22 -> 19 [ label = "()" ]
+        23 -> 22 [ label = "()" ]
+        23 -> 21 [ label = "()" ]
+        24 -> 23 [ label = "()" ]
+        25 -> 24 [ label = "()" ]
+        26 -> 25 [ label = "()" ]
+        27 -> 26 [ label = "()" ]
+        28 -> 27 [ label = "()" ]
+        29 -> 28 [ label = "()" ]
+        30 -> 29 [ label = "()" ]
+        31 -> 30 [ label = "()" ]
+        32 -> 31 [ label = "()" ]
+        33 -> 32 [ label = "()" ]
+        34 -> 33 [ label = "()" ]
+        35 -> 33 [ label = "()" ]
+        36 -> 34 [ label = "()" ]
+        36 -> 35 [ label = "()" ]
+        37 -> 36 [ label = "()" ]
+        38 -> 37 [ label = "()" ]
+        39 -> 38 [ label = "()" ]
+        40 -> 39 [ label = "()" ]
+        42 -> 41 [ label = "()" ]
+        42 -> 40 [ label = "()" ]
+        43 -> 42 [ label = "()" ]
+        44 -> 41 [ label = "()" ]
+        44 -> 40 [ label = "()" ]
+        45 -> 41 [ label = "()" ]
+        45 -> 40 [ label = "()" ]
+        46 -> 43 [ label = "()" ]
+        46 -> 45 [ label = "()" ]
+        47 -> 44 [ label = "()" ]
+        47 -> 46 [ label = "()" ]
+        48 -> 44 [ label = "()" ]
+        48 -> 46 [ label = "()" ]
+        49 -> 46 [ label = "()" ]
+        50 -> 49 [ label = "()" ]
+        50 -> 47 [ label = "()" ]
+        51 -> 49 [ label = "()" ]
+        51 -> 48 [ label = "()" ]
+        52 -> 51 [ label = "()" ]
+        52 -> 50 [ label = "()" ]
+        54 -> 53 [ label = "()" ]
+        55 -> 54 [ label = "()" ]
+        55 -> 22 [ label = "()" ]
+    }"#);
+}
\ No newline at end of file
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/link_adapter/tests.rs b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/link_adapter/tests.rs
new file mode 100644
index 000000000..809291288
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/link_adapter/tests.rs
@@ -0,0 +1,103 @@
+#[test]
+pub fn test_merge_fast_forward() {
+    use hdk::prelude::*;
+
+    use crate::link_adapter::workspace::Workspace;
+    use crate::retriever::{Associations, GraphInput, MockPerspectiveGraph, GLOBAL_MOCKED_GRAPH};
+
+    fn update() {
+        let mut graph = GLOBAL_MOCKED_GRAPH.lock().unwrap();
+        *graph = MockPerspectiveGraph::new(GraphInput {
+            nodes: 6,
+            associations: vec![
+                Associations {
+                    node_source: 1,
+                    node_targets: vec![0],
+                },
+                Associations {
+                    node_source: 2,
+                    node_targets: vec![0],
+                },
+                Associations {
+                    node_source: 3,
+                    node_targets: vec![1],
+                },
+                Associations {
+                    node_source: 4,
+                    node_targets: vec![2],
+                },
+                Associations {
+                    node_source: 5,
+                    node_targets: vec![3, 4],
+                },
+            ],
+        });
+    }
+    update();
+
+    let mut workspace = Workspace::new();
+    let res = workspace.collect_until_common_ancestor::<MockPerspectiveGraph>(
+        ActionHash::from_raw_36(vec![5; 36]),
+        ActionHash::from_raw_36(vec![4; 36]),
+    );
+    assert!(res.is_ok());
+    assert_eq!(res.unwrap(), ActionHash::from_raw_36(vec![0; 36]));
+}
+
+#[test]
+pub fn test_fork_with_none_source() {
+    use hdk::prelude::*;
+
+    use crate::link_adapter::workspace::Workspace;
+    use crate::retriever::{GraphInput, MockPerspectiveGraph, GLOBAL_MOCKED_GRAPH};
+
+    fn update() {
+        let mut graph = GLOBAL_MOCKED_GRAPH.lock().unwrap();
+        *graph = MockPerspectiveGraph::new(GraphInput {
+            nodes: 2,
+            associations: vec![],
+        });
+    }
+    update();
+
+    let mut workspace = Workspace::new();
+    let res = workspace.collect_until_common_ancestor::<MockPerspectiveGraph>(
+        ActionHash::from_raw_36(vec![0; 36]),
+        ActionHash::from_raw_36(vec![1; 36]),
+    );
+    assert!(res.is_ok());
+    //TODO; this is a problem since our pull code is not expecting to find a common ancestor, since both tips are forks
+    //but in the case below where we have a merge entry we need to register the None node as a common ancestor so we can traverse the "their" branch back until the root
+    //and not break the traversal with common ancestor as the "ours" node as was happening before
+    //
+    //So what do we actually need to return here?
+    assert_eq!(res.unwrap(), ActionHash::from_raw_36(vec![0xdb; 36]));
+}
+
+#[test]
+pub fn test_merge_fast_forward_none_source() {
+    use hdk::prelude::*;
+
+    use crate::link_adapter::workspace::Workspace;
+    use crate::retriever::{Associations, GraphInput, MockPerspectiveGraph, GLOBAL_MOCKED_GRAPH};
+
+    fn update() {
+        let mut graph = GLOBAL_MOCKED_GRAPH.lock().unwrap();
+        *graph = MockPerspectiveGraph::new(GraphInput {
+            nodes: 3,
+            associations: vec![Associations {
+                node_source: 2,
+                node_targets: vec![0, 1],
+            }],
+        });
+    }
+    update();
+
+    let mut workspace = Workspace::new();
+    let res = workspace.collect_until_common_ancestor::<MockPerspectiveGraph>(
+        ActionHash::from_raw_36(vec![2; 36]),
+        ActionHash::from_raw_36(vec![1; 36]),
+    );
+    assert!(res.is_ok());
+    assert_eq!(res.unwrap(), ActionHash::from_raw_36(vec![0xdb; 36]));
+}
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/link_adapter/topo_sort.rs b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/link_adapter/topo_sort.rs
new file mode 100644
index 000000000..d33b5f015
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/link_adapter/topo_sort.rs
@@ -0,0 +1,143 @@
+use crate::errors::{SocialContextError, SocialContextResult};
+use hdk::prelude::*;
+use perspective_diff_sync_integrity::PerspectiveDiffEntryReference;
+use std::collections::BTreeSet;
+
+// Applies Kahn's algorithm for topologically sorting a graph
+pub fn topo_sort_diff_references(
+    arr: &Vec<(
+        HoloHash<holo_hash::hash_type::Action>,
+        PerspectiveDiffEntryReference,
+    )>,
+) -> SocialContextResult<
+    Vec<(
+        HoloHash<holo_hash::hash_type::Action>,
+        PerspectiveDiffEntryReference,
+    )>,
+> {
+    type Hash = HoloHash<holo_hash::hash_type::Action>;
+    let mut result = Vec::<(Hash, PerspectiveDiffEntryReference)>::new();
+
+    // first collect orphaned nodes (=without parent) as starting points:
+    let mut orphaned_nodes: Vec<(Hash, PerspectiveDiffEntryReference)> = arr
+        .iter()
+        .filter(|&e| e.1.parents == None)
+        .cloned()
+        .collect();
+
+    if orphaned_nodes.len() == 0 {
+        debug!("No orphans found! Length: {}, list: {:?}", arr.len(), arr);
+        return Err(SocialContextError::InternalError(
+            "Can't topologically sort list without orphan!",
+        ));
+    }
+
+    let mut edges = BTreeSet::new();
+    for i in 0..arr.len() {
+        if let Some(parents) = &arr[i].1.parents {
+            for p in 0..parents.len() {
+                let child = arr[i].0.clone();
+                let parent = parents[p].clone();
+                edges.insert((child, parent));
+            }
+        }
+    }
+
+    // Starting from the nodes without parents...
+    while let Some(n) = orphaned_nodes.pop() {
+        //.. we put them into the result list.
+        result.push(n.clone());
+
+        println!("Added orphan {:?}", n);
+
+        // and then we look for any nodes that have it as parent
+        // (using the edges set)
+        let edges_with_n_as_parent = edges
+            .iter()
+            .filter(|&e| e.1 == n.0)
+            .cloned()
+            .collect::<Vec<(Hash, Hash)>>();
+
+        println!("Edges with orphan as parent {:?}", edges_with_n_as_parent);
+
+        // So for every parent relationship with n as parent...
+        for edge in &edges_with_n_as_parent {
+            println!("Removing edge {:?}", edge);
+            // we remove that edge
+            edges.remove(edge);
+
+            // and then check if that child of n has any other parents...
+            let child = edge.0.clone();
+
+            println!("Found child {:?}", child);
+            let edges_with_child_as_child = edges
+                .iter()
+                .filter(|&e| e.0 == child)
+                .cloned()
+                .collect::<Vec<(Hash, Hash)>>();
+
+            println!("Edges with child as child {:?}", edges_with_child_as_child);
+
+            // if the child does not have any other parents (left unprocessed)
+            if edges_with_child_as_child.len() == 0 {
+                // we're good to add the child to the results as well.
+                let child_item = arr.iter().find(|&e| e.0 == child).ok_or(SocialContextError::InternalError("Topological sort couldn't find child in input vector, which was mentioned in an edge. This can only be an error in the topological sorting code.."))?;
+                println!("Adding newly orphaned child {:?}", child_item);
+                orphaned_nodes.push((child.clone(), child_item.1.clone()));
+            }
+        }
+    }
+
+    if edges.len() > 0 {
+        debug!(
+            "Unresolved parent links after topologically sorting: {:?}",
+            edges
+        );
+
+        debug!("Number of unresolved parent links {:?}", edges.len());
+        debug!("Number of items to sort: {:?}", arr.len());
+        Err(SocialContextError::InternalError(
+            "Cycle or missing nodes detected. Unresolved parent links after topologically sorting.",
+        ))
+        //Ok(result)
+    } else {
+        Ok(result)
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::topo_sort_diff_references;
+    use hdk::prelude::*;
+    use perspective_diff_sync_integrity::PerspectiveDiffEntryReference;
+
+    #[test]
+    fn test_topo_sort_diff_references() {
+        let h1 = HoloHash::<holo_hash::hash_type::Action>::from_raw_36(vec![1; 36]);
+        let h2 = HoloHash::<holo_hash::hash_type::Action>::from_raw_36(vec![2; 36]);
+        let h3 = HoloHash::<holo_hash::hash_type::Action>::from_raw_36(vec![3; 36]);
+        let h4 = HoloHash::<holo_hash::hash_type::Action>::from_raw_36(vec![4; 36]);
+
+        let r1 = PerspectiveDiffEntryReference::new(h1.clone(), Some(vec![h2.clone(), h3.clone()]));
+        let r2 = PerspectiveDiffEntryReference::new(h2.clone(), Some(vec![h4.clone()]));
+        let r3 = PerspectiveDiffEntryReference::new(h3.clone(), Some(vec![h4.clone()]));
+        let r4 = PerspectiveDiffEntryReference::new(h4.clone(), None);
+
+        let e1 = (h1, r1);
+        let e2 = (h2, r2);
+        let e3 = (h3, r3);
+        let e4 = (h4, r4);
+
+        assert_eq!(e1.0, e1.1.diff);
+        assert_eq!(e2.0, e2.1.diff);
+        assert_eq!(e3.0, e3.1.diff);
+        assert_eq!(e4.0, e4.1.diff);
+
+        let test_vec = vec![e1.clone(), e2.clone(), e3.clone(), e4.clone()];
+        let expected = vec![e4, e3, e2, e1];
+
+        let result = topo_sort_diff_references(&test_vec).expect("topo sort to not error");
+
+        assert_eq!(result, expected);
+    }
+}
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/link_adapter/workspace.rs b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/link_adapter/workspace.rs
new file mode 100644
index 000000000..296e1f004
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/link_adapter/workspace.rs
@@ -0,0 +1,1427 @@
+use hdk::prelude::*;
+use itertools::Itertools;
+use perspective_diff_sync_integrity::{
+    LinkTypes, PerspectiveDiff, PerspectiveDiffEntryReference, Snapshot,
+};
+use petgraph::{
+    algo::dominators::simple_fast,
+    dot::{Config, Dot},
+    graph::{DiGraph, Graph, NodeIndex, UnGraph},
+};
+use std::cell::RefCell;
+use std::collections::{BTreeMap, VecDeque};
+
+use crate::errors::{SocialContextError, SocialContextResult};
+use crate::link_adapter::topo_sort::topo_sort_diff_references;
+use crate::retriever::{hash_to_node_id, PerspectiveDiffRetreiver};
+use crate::utils::get_now;
+use crate::Hash;
+
+pub struct Workspace {
+    pub graph: DiGraph<Hash, ()>,
+    pub undirected_graph: UnGraph<Hash, ()>,
+    pub node_index_map: BTreeMap<Hash, NodeIndex<u32>>,
+    pub entry_map: BTreeMap<Hash, PerspectiveDiffEntryReference>,
+    pub sorted_diffs: Option<Vec<(Hash, PerspectiveDiffEntryReference)>>,
+    pub common_ancestors: Vec<Hash>,
+    pub diffs: BTreeMap<Hash, PerspectiveDiffEntryReference>,
+    pub back_links: BTreeMap<Hash, BTreeSet<Hash>>,
+    unexplored_side_branches: BTreeSet<Hash>,
+}
+
+#[derive(Clone)]
+struct BfsSearch {
+    pub found_ancestors: RefCell<Vec<Hash>>,
+    pub bfs_branches: RefCell<Vec<Hash>>,
+    pub reached_end: bool,
+}
+
+#[allow(non_snake_case)]
+pub fn NULL_NODE() -> ActionHash {
+    ActionHash::from_raw_36(vec![0xdb; 36])
+}
+
+impl BfsSearch {
+    pub fn new(start: Hash) -> BfsSearch {
+        let branches = RefCell::new(Vec::from([start]));
+        BfsSearch {
+            found_ancestors: RefCell::new(Vec::new()),
+            bfs_branches: branches,
+            reached_end: false,
+        }
+    }
+}
+
+impl std::fmt::Debug for BfsSearch {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        if cfg!(test) {
+            let ancestors: Vec<_> = self
+                .found_ancestors
+                .borrow()
+                .clone()
+                .into_iter()
+                .map(|val| hash_to_node_id(val))
+                .collect();
+            let branches: Vec<_> = self
+                .bfs_branches
+                .borrow()
+                .clone()
+                .into_iter()
+                .map(|val| hash_to_node_id(val))
+                .collect();
+            write!(
+                f,
+                "BfsSearch {{ found_ancestors: {:?},\n bfs_branches: {:?},\n reached_end: {:?} }}",
+                ancestors, branches, self.reached_end
+            )
+        } else {
+            write!(
+                f,
+                "BfsSearch {{ found_ancestors: {:?},\n bfs_branches: {:?},\n reached_end: {:?} }}",
+                self.found_ancestors, self.bfs_branches, self.reached_end
+            )
+        }
+    }
+}
+
+#[derive(PartialEq, Eq, PartialOrd, Ord, Clone, Debug)]
+enum SearchSide {
+    Theirs,
+    Ours,
+}
+
+fn other_side(side: &SearchSide) -> SearchSide {
+    match side {
+        SearchSide::Theirs => SearchSide::Ours,
+        SearchSide::Ours => SearchSide::Theirs,
+    }
+}
+
+impl Workspace {
+    pub fn new() -> Workspace {
+        Workspace {
+            graph: Graph::new(),
+            undirected_graph: Graph::new_undirected(),
+            node_index_map: BTreeMap::new(),
+            entry_map: BTreeMap::new(),
+            sorted_diffs: None,
+            common_ancestors: vec![],
+            diffs: BTreeMap::new(),
+            back_links: BTreeMap::new(),
+            unexplored_side_branches: BTreeSet::new(),
+        }
+    }
+
+    // This is the easy case when we only build from one hash.
+    // (either latest or our current hash, like in render).
+    // We don't have to check for forks, we just deep search from the given
+    // diff and terminate at leafs and snapshots.
+    // Since we don't have to detect and handle forks, we don't need
+    // to unroll snapshots and just treat them as leafs.
+    pub fn collect_only_from_latest<Retriever: PerspectiveDiffRetreiver>(
+        &mut self,
+        latest: Hash,
+    ) -> SocialContextResult<()> {
+        debug!("===Workspace.collect_only_from_latest(): Function start");
+        let fn_start = get_now()?.time();
+
+        // Initializing with only one branch starting from the given hash.
+        let mut unprocessed_branches = VecDeque::new();
+        unprocessed_branches.push_back(latest);
+
+        let mut snapshot_seen = vec![];
+
+        while !unprocessed_branches.is_empty() {
+            let current_hash = unprocessed_branches[0].clone();
+
+            if self.entry_map.contains_key(&current_hash) && !snapshot_seen.contains(&current_hash)
+            {
+                debug!("===Workspace.collect_only_from_latest(): CIRCLE DETECTED! Closing current branch...");
+                unprocessed_branches.pop_front();
+                continue;
+            }
+
+            let current_diff = Self::get_p_diff_reference::<Retriever>(current_hash.clone())?;
+
+            if current_diff.diffs_since_snapshot == 0 {
+                debug!("===Workspace.collect_only_from_latest(): Found a perspective diff reference containing a snapshot!");
+                let snapshot = Self::get_snapshot(current_diff.clone())?;
+
+                if snapshot.is_none() {
+                    debug!("===Workspace.collect_only_from_latest(): ERROR: Expected to find snapshot link on current_diff where diffs_since_snapshot was 0");
+                    self.handle_parents(current_diff, current_hash, &mut unprocessed_branches);
+                } else {
+                    let mut snapshot = snapshot.unwrap();
+
+                    let mut last_diff = None;
+                    for i in 0..snapshot.diff_chunks.len() {
+                        let diff_chunk = &snapshot.diff_chunks[i];
+                        self.entry_map.insert(
+                            diff_chunk.clone(),
+                            PerspectiveDiffEntryReference::new(
+                                diff_chunk.clone(),
+                                last_diff.clone(),
+                            ),
+                        );
+                        last_diff = Some(vec![diff_chunk.clone()]);
+                    }
+
+                    self.entry_map.insert(
+                        current_hash.clone(),
+                        PerspectiveDiffEntryReference::new(current_diff.diff, last_diff.clone()),
+                    );
+
+                    snapshot_seen.append(&mut snapshot.included_diffs);
+
+                    // Snapshot terminates like an orphan.
+                    // So we can close this branch and potentially continue
+                    // with other unprocessed branches, if they exist.
+                    unprocessed_branches.pop_front();
+                };
+            } else {
+                self.handle_parents(current_diff, current_hash, &mut unprocessed_branches);
+            }
+        }
+
+        let fn_end = get_now()?.time();
+        debug!("===Workspace.collect_only_from_latest() - Profiling: Took: {} to complete collect_only_from_latest() function", (fn_end - fn_start).num_milliseconds());
+
+        Ok(())
+    }
+
+    fn handle_parents(
+        &mut self,
+        current_diff: PerspectiveDiffEntryReference,
+        current_hash: Hash,
+        unprocessed_branches: &mut VecDeque<Hash>,
+    ) {
+        if let Some(parents) = &current_diff.parents {
+            for i in 0..parents.len() {
+                // Depth-first search:
+                // We are replacing our search position (==current_hash==unprocessed_branches[0])
+                // with the first parent.
+                // Other parents are pushed on the vec as new branches to search later..
+                if i == 0 {
+                    unprocessed_branches[0] = parents[i].clone();
+                } else {
+                    unprocessed_branches.push_back(parents[i].clone())
+                }
+            }
+        } else {
+            // We arrived at a leaf/orphan (no parents).
+            // So we can close this branch and potentially continue
+            // with other unprocessed branches, if they exist.
+            unprocessed_branches.pop_front();
+        }
+
+        self.entry_map.insert(current_hash, current_diff);
+    }
+
+    pub fn sort_graph(&mut self) -> SocialContextResult<()> {
+        //debug!("===Workspace.sort_graph(): Function start");
+        //let fn_start = get_now()?.time();
+
+        let common_ancestor = self.common_ancestors.last().unwrap();
+
+        //TODO; this should probably be a Map but tests break when it is a map
+        let mut sorted: Vec<(Hash, PerspectiveDiffEntryReference)> = Vec::new();
+        let mut visited: HashSet<Hash> = HashSet::new();
+        let mut next: VecDeque<Hash> = VecDeque::new();
+        self.unexplored_side_branches = BTreeSet::new();
+        //let mut inner_iter = 0;
+
+        next.push_back(common_ancestor.clone());
+
+        while !next.is_empty() {
+            let current = next.pop_front().expect("must be Ok since next !is_empty()");
+            if !visited.contains(&current) {
+                //inner_iter += 1;
+                //println!("current: {:?}", hash_to_node_id(current.clone()));
+                match self.back_links.get(&current) {
+                    Some(children) => {
+                        //println!("--> has {} children, checking the children to see if there is a missing parent link", children.len());
+                        //println!("Children are: {:#?}", children.clone().into_iter().map(|child| hash_to_node_id(child)).collect::<Vec<String>>());
+                        for child in children.iter() {
+                            let diff = self.diffs.get(&child).expect("Should child must exist");
+                            if diff.parents.is_some() {
+                                for parent in diff.parents.as_ref().unwrap() {
+                                    if parent != &current {
+                                        //println!("Found missing parent: {:?}", hash_to_node_id(parent.clone()));
+                                        self.unexplored_side_branches.insert(parent.clone());
+                                    }
+                                }
+                            }
+                        }
+                        let mut unseen_children = children
+                            .to_owned()
+                            .into_iter()
+                            .filter(|child| !next.contains(child))
+                            .collect::<VecDeque<_>>();
+                        next.append(&mut unseen_children);
+                    }
+                    None => {}
+                };
+                let current_diff = self.diffs.get(&current).expect("diffs should be populated");
+                sorted.push((current.clone(), current_diff.clone()));
+                if self.entry_map.get(&current).is_none() {
+                    self.entry_map.insert(current.clone(), current_diff.clone());
+                };
+                visited.insert(current);
+            }
+        }
+        //debug!(
+        //    "===Workspace.sort_graph(): Made {:?} total iterations",
+        //    inner_iter
+        //);
+
+        self.unexplored_side_branches = self
+            .unexplored_side_branches
+            .iter()
+            .filter(|b| !sorted.iter().find(|s| s.0 == **b).is_some())
+            .cloned()
+            .collect();
+
+        // println!("SortGraph iter: Unexplored side branches: {:?}", self.unexplored_side_branches.clone().into_iter().map(|child| hash_to_node_id(child)).collect::<Vec<String>>());
+
+        //println!("Sorted is: {:?}", sorted.clone().into_iter().map(|val| hash_to_node_id(val.0)).collect::<Vec<_>>());
+        self.sorted_diffs = Some(sorted.into_iter().unique().collect());
+
+        //let fn_end = get_now()?.time();
+        //debug!(
+        //    "===Workspace.sort_graph() - Profiling: Took: {} to complete sort_graph() function",
+        //    (fn_end - fn_start).num_milliseconds()
+        //);
+
+        Ok(())
+    }
+
+    pub fn build_diffs<Retriever: PerspectiveDiffRetreiver>(
+        &mut self,
+        theirs: Hash,
+        ours: Hash,
+    ) -> SocialContextResult<()> {
+        debug!("===Workspace.build_diffs(): Function start");
+        let fn_start = get_now()?.time();
+
+        let common_ancestor = self.collect_until_common_ancestor::<Retriever>(theirs, ours)?;
+        self.common_ancestors.push(common_ancestor);
+
+        //println!("===PerspectiveDiffSunc.build_diffs(): Got diffs: {:?}", self.diffs.iter().map(|x| hash_to_node_id(x.0.to_owned())).collect::<Vec<_>>());
+        //println!("===PerspectiveDiffSunc.build_diffs(): Got back_links: {:?}", self.back_links.iter().map(|x| hash_to_node_id(x.0.to_owned())).collect::<Vec<_>>());
+
+        self.sort_graph()?;
+        //println!("===PerspectiveDiffSunc.build_diffs(): Got unexplored side branches parent: {:#?}", self.unexplored_side_branches.iter().map(|x| hash_to_node_id(x.to_owned())).collect::<Vec<_>>());
+
+        while self.unexplored_side_branches.len() > 0 {
+            let unexplored_side_branch = self
+                .unexplored_side_branches
+                .iter()
+                .next_back()
+                .unwrap()
+                .to_owned();
+            let ours = self
+                .common_ancestors
+                .last()
+                .expect("There should have been a common ancestor above")
+                .to_owned();
+            //println!("===Workspace.build_diffs(): making an explored side branch iteration: {:?} and ours: {:?}", hash_to_node_id(unexplored_side_branch.clone()), hash_to_node_id(ours.clone()));
+            let common_ancestor =
+                self.collect_until_common_ancestor::<Retriever>(unexplored_side_branch, ours)?;
+            self.common_ancestors.push(common_ancestor.clone());
+            self.sort_graph()?;
+            //println!("===PerspectiveDiffSync.build_diffs(): Got common ancestor: {:?}", hash_to_node_id(common_ancestor));
+        }
+
+        let sorted_diffs = self.sorted_diffs.as_mut().unwrap();
+        sorted_diffs.get_mut(0).unwrap().1.parents = None;
+        self.sorted_diffs = Some(topo_sort_diff_references(sorted_diffs)?);
+        // println!("===PerspectiveDiffSunc.build_diffs(): Got sorted diffs: {:#?}", self.sorted_diffs);
+
+        self.build_graph()?;
+        self.print_graph_debug();
+
+        let fn_end = get_now()?.time();
+        debug!(
+            "===Workspace.build_diffs() - Profiling: Took: {} to complete build_diffs() function",
+            (fn_end - fn_start).num_milliseconds()
+        );
+
+        Ok(())
+    }
+
+    fn terminate_with_null_node(
+        &mut self,
+        current_hash: Hash,
+        side: SearchSide,
+        searches: &mut BTreeMap<SearchSide, BfsSearch>,
+    ) -> SocialContextResult<()> {
+        let search_clone = searches.clone();
+        let other = search_clone
+            .get(&other_side(&side))
+            .ok_or(SocialContextError::InternalError("search side not found"))?;
+        let search = searches
+            .get_mut(&side)
+            .ok_or(SocialContextError::InternalError("search side not found"))?;
+
+        if !search.found_ancestors.borrow().contains(&NULL_NODE()) {
+            search.found_ancestors.get_mut().push(NULL_NODE());
+        };
+        if !other.found_ancestors.borrow().contains(&NULL_NODE()) {
+            let other_mut = searches
+                .get_mut(&other_side(&side))
+                .ok_or(SocialContextError::InternalError("search side not found"))?;
+            other_mut.found_ancestors.get_mut().push(NULL_NODE());
+        };
+        if self.diffs.get(&NULL_NODE()).is_none() {
+            let current_diff = PerspectiveDiffEntryReference::new(NULL_NODE(), None);
+            self.diffs.insert(NULL_NODE(), current_diff.clone());
+        };
+
+        let mut set = if let Some(nodes_back_links) = self.back_links.get(&NULL_NODE()) {
+            let mut nodes_back_links = nodes_back_links.clone();
+            if let Some(other_last) = other.found_ancestors.borrow().last().clone() {
+                if other_last != &NULL_NODE() {
+                    nodes_back_links.insert(other_last.clone());
+                }
+            }
+            nodes_back_links.clone()
+        } else {
+            let mut set = BTreeSet::new();
+            if let Some(other_last) = other.found_ancestors.borrow().last().clone() {
+                if other_last != &NULL_NODE() {
+                    set.insert(other_last.clone());
+                }
+            }
+            set
+        };
+        if current_hash != NULL_NODE() {
+            set.insert(current_hash);
+        };
+        self.back_links.insert(NULL_NODE(), set);
+        Ok(())
+    }
+
+    pub fn collect_until_common_ancestor<Retriever: PerspectiveDiffRetreiver>(
+        &mut self,
+        theirs: Hash,
+        ours: Hash,
+    ) -> SocialContextResult<Hash> {
+        //debug!("===Workspace.collect_until_common_ancestor(): Function start");
+        let fn_start = get_now()?.time();
+
+        let mut common_ancestor: Option<Hash> = None;
+
+        let mut searches = btreemap! {
+            SearchSide::Theirs => BfsSearch::new(theirs),
+            SearchSide::Ours => BfsSearch::new(ours),
+        };
+
+        while common_ancestor.is_none() {
+            // println!("===Workspace.collect_until_common_ancestor(): collect_until_common_ancestor 2: {:#?}", searches.get(&SearchSide::Theirs).unwrap().bfs_branches.borrow());
+            // println!("===Workspace.collect_until_common_ancestor(): collect_until_common_ancestor 2: {:#?}", searches.get(&SearchSide::Ours).unwrap().bfs_branches.borrow());
+            // do the same BFS for theirs_branches and ours_branches..
+            for side in vec![SearchSide::Theirs, SearchSide::Ours] {
+                println!("Checking side: {:#?}", side);
+                let search_clone = searches.clone();
+                let other = search_clone.get(&other_side(&side)).ok_or(
+                    SocialContextError::InternalError("other search side not found"),
+                )?;
+                let search = searches
+                    .get_mut(&side)
+                    .ok_or(SocialContextError::InternalError("search side not found"))?;
+                let branches = search.bfs_branches.get_mut();
+                branches.dedup();
+
+                for branch_index in 0..branches.len() {
+                    println!("===Workspace.collect_until_common_ancestor(): collect_until_common_ancestor 2.1");
+                    let current_hash = branches[branch_index].clone();
+                    println!(
+                        "Checking current hash: {:#?}",
+                        hash_to_node_id(current_hash.clone())
+                    );
+
+                    let already_visited = search.found_ancestors.borrow().contains(&current_hash);
+                    let seen_on_other_side = other.found_ancestors.borrow().contains(&current_hash)
+                        || other.bfs_branches.borrow().contains(&current_hash);
+
+                    if already_visited {
+                        println!("===Workspace.collect_until_common_ancestor(): collect_until_common_ancestor 2.2 ALREADY VISITED");
+                        // We've seen this diff on this side, so we are at the end of a branch.
+                        // Just ignore this hash and close the branch.
+                        branches.remove(branch_index);
+                        break;
+                    }
+
+                    if seen_on_other_side {
+                        println!("===Workspace.collect_until_common_ancestor(): collect_until_common_ancestor 2.2 SEEN ON OTHER SIDE");
+
+                        //Add the diff to both searches if it is not there
+                        if !search.found_ancestors.borrow().contains(&current_hash) {
+                            search.found_ancestors.get_mut().push(current_hash.clone());
+                        };
+                        if !other.found_ancestors.borrow().contains(&current_hash) {
+                            searches
+                                .get_mut(&other_side(&side))
+                                .ok_or(SocialContextError::InternalError(
+                                    "other search side not found",
+                                ))?
+                                .found_ancestors
+                                .get_mut()
+                                .push(current_hash.clone());
+                        };
+                        if self.diffs.get(&current_hash).is_none() && current_hash != NULL_NODE() {
+                            let current_diff =
+                                Self::get_p_diff_reference::<Retriever>(current_hash.clone())?;
+                            self.diffs
+                                .insert(current_hash.clone(), current_diff.clone());
+                        };
+                        // current hash is already in, so it must be our common ancestor!
+                        common_ancestor = Some(current_hash);
+                        break;
+                    }
+
+                    //println!("===Workspace.collect_until_common_ancestor(): collect_until_common_ancestor 2.3");
+                    search.found_ancestors.get_mut().push(current_hash.clone());
+
+                    if current_hash == NULL_NODE() {
+                        branches.remove(branch_index);
+                        search.reached_end = true;
+                        if common_ancestor.is_none() && other.reached_end == true {
+                            common_ancestor = Some(NULL_NODE());
+                            self.terminate_with_null_node(current_hash, side, &mut searches)?;
+                        };
+
+                        break;
+                    }
+
+                    //TODO; this should have caching builtin, since on some iterations we will get the same P reference multiple times
+                    let current_diff =
+                        Self::get_p_diff_reference::<Retriever>(current_hash.clone())?;
+                    self.diffs
+                        .insert(current_hash.clone(), current_diff.clone());
+
+                    match &current_diff.parents {
+                        None => {
+                            // We arrived at a leaf/orphan (no parents).
+                            // So we can close this branch and potentially continue
+                            // with other unprocessed branches, if they exist.
+                            println!("===Workspace.collect_until_common_ancestor(): collect_until_common_ancestor 2.4, no more parents");
+                            branches.remove(branch_index);
+                            //If there are no more branches and we have truly reached the end
+                            search.reached_end = true;
+                            //NOTE: this if block is the code that breaks the test_latest_join tests, with it removed the tests pass, but test three null parents fails
+                            if common_ancestor.is_none() && other.reached_end == true {
+                                common_ancestor = Some(NULL_NODE());
+                                self.terminate_with_null_node(current_hash, side, &mut searches)?;
+                            };
+                            // We have to break out of loop to avoid having branch_index run out of bounds
+                            break;
+                        }
+                        Some(parents) => {
+                            // println!("===Workspace.collect_until_common_ancestor(): collect_until_common_ancestor 2.4, more parents: {:#?}", parents);
+                            for parent_index in 0..parents.len() {
+                                println!("===Workspace.collect_until_common_ancestor(): collect_until_common_ancestor 2.5, more parents after filter");
+                                let parent = parents[parent_index].clone();
+                                if let Some(links) = self.back_links.get_mut(&parent) {
+                                    links.insert(current_hash.clone());
+                                } else {
+                                    let mut set = BTreeSet::new();
+                                    set.insert(current_hash.clone());
+                                    self.back_links.insert(parent.clone(), set);
+                                }
+                                // The first parent is taken as the successor for the current branch.
+                                // If there are multiple parents (i.e. merge commit), we create a new branch..
+                                if parent_index == 0 {
+                                    println!("Adding new parent to existing branch index");
+                                    let _ = std::mem::replace(
+                                        &mut branches[branch_index],
+                                        parent.clone(),
+                                    );
+                                } else {
+                                    let already_visited =
+                                        search.found_ancestors.borrow().contains(&parent)
+                                            || other.bfs_branches.borrow().contains(&parent);
+                                    let seen_on_other_side =
+                                        other.found_ancestors.borrow().contains(&parent);
+                                    if !already_visited && !seen_on_other_side {
+                                        println!("===Workspace.collect_until_common_ancestor(): Adding a new branch");
+                                        branches.push(parent.clone())
+                                    }
+                                }
+                            }
+                        }
+                    };
+
+                    //println!("===Workspace.collect_until_common_ancestor(): collect_until_common_ancestor 2.7");
+                }
+            }
+        }
+
+        let fn_end = get_now()?.time();
+        let ms_spent = (fn_end - fn_start).num_milliseconds();
+        if ms_spent > 1000 {
+            debug!("===Workspace.collect_until_common_ancestor() - Profiling: Took: {} to complete collect_until_common_ancestor() function", ms_spent);
+        }
+
+        if common_ancestor.is_none() {
+            return Err(SocialContextError::NoCommonAncestorFound);
+        };
+
+        // println!("===Workspace.collect_until_common_ancestor(): collect_until_common_ancestor 3: {:#?} and common ancestor is: {:#?}", searches, hash_to_node_id(common_ancestor.clone().unwrap()));
+
+        Ok(common_ancestor.unwrap())
+    }
+
+    // pub fn topo_sort_graph(&mut self) -> SocialContextResult<()> {
+    //     debug!("===Workspace.topo_sort_graph(): Function start");
+    //     let fn_start = get_now()?.time();
+
+    //     let entry_vec = self.entry_map
+    //         .clone()
+    //         .into_iter()
+    //         .collect::<Vec<(Hash, PerspectiveDiffEntryReference)>>();
+
+    //     let mut dot = Vec::<String>::new();
+
+    //     dot.push("digraph {".to_string());
+    //     for entry in entry_vec.iter() {
+    //         dot.push(format!("{}", entry.0.clone()));
+    //         if let Some(parents) = &entry.1.parents {
+    //             for p in parents.iter() {
+    //                 dot.push(format!("{} -> {}", entry.0, p));
+    //             }
+    //         }
+    //     }
+    //     dot.push("}".to_string());
+
+    //     println!("{}", dot.join("\n"));
+
+    //     self.sorted_diffs = Some(topo_sort_diff_references(&entry_vec)?);
+
+    //     let fn_end = get_now()?.time();
+    //     debug!("===Workspace.topo_sort_graph() - Profiling: Took: {} to complete topo_sort_graph() function", (fn_end - fn_start).num_milliseconds());
+    //     Ok(())
+    // }
+
+    pub fn build_graph(&mut self) -> SocialContextResult<()> {
+        debug!("===Workspace.build_graph(): Function start");
+        let fn_start = get_now()?.time();
+
+        match self.sorted_diffs.clone() {
+            None => Err(SocialContextError::InternalError(
+                "Need to 1. collect diffs and then 2. sort them before building the graph",
+            )),
+            Some(sorted_diffs) => {
+                //Add root node
+                if self.get_node_index(&NULL_NODE()).is_none() {
+                    self.add_node(None, NULL_NODE());
+                };
+
+                for diff in sorted_diffs {
+                    if diff.0 != NULL_NODE() {
+                        if diff.1.parents.is_some() {
+                            let mut parents = vec![];
+                            for parent in diff.1.parents.as_ref().unwrap() {
+                                let parent = self.get_node_index(&parent).ok_or(
+                                    SocialContextError::InternalError("Did not find parent"),
+                                )?;
+                                parents.push(parent.clone());
+                            }
+                            self.add_node(Some(parents), diff.0.clone());
+                        } else {
+                            self.add_node(Some(vec![NodeIndex::from(0)]), diff.0.clone());
+                        }
+                    }
+                }
+
+                let fn_end = get_now()?.time();
+                debug!("===Workspace.build_graph() - Profiling: Took: {} to complete build_graph() function", (fn_end - fn_start).num_milliseconds());
+
+                Ok(())
+            }
+        }
+    }
+
+    pub fn get_p_diff_reference<Retriever: PerspectiveDiffRetreiver>(
+        address: Hash,
+    ) -> SocialContextResult<PerspectiveDiffEntryReference> {
+        Retriever::get(address)
+    }
+
+    fn get_snapshot(
+        address: PerspectiveDiffEntryReference,
+    ) -> SocialContextResult<Option<Snapshot>> {
+        debug!("===Workspace.get_snapshot(): Function start");
+        let fn_start = get_now()?.time();
+
+        // let input = GetLinksInputBuilder::try_new(
+        //     hash_entry(address)?,
+        //     LinkTypes::Snapshot
+        // )
+        // .unwrap()
+        // .tag_prefix(LinkTag::new("snapshot"))
+        // .build();
+        let mut snapshot_links = get_links(hash_entry(address)?, LinkTypes::Snapshot, Some(LinkTag::new("snapshot")))?;
+
+        if snapshot_links.len() > 0 {
+            let snapshot = get(
+                snapshot_links
+                    .remove(0)
+                    .target
+                    .into_entry_hash()
+                    .expect("Could not get entry hash"),
+                GetOptions::latest(),
+            )?
+            .ok_or(SocialContextError::InternalError(
+                "Workspace::get_snapshot: Could not find entry while populating search",
+            ))?
+            .entry()
+            .to_app_option::<Snapshot>()?
+            .ok_or(SocialContextError::InternalError(
+                "Expected element to contain app entry data",
+            ))?;
+
+            let fn_end = get_now()?.time();
+            debug!("===Workspace.get_snapshot() - Profiling: Took: {} to complete get_snapshot() function", (fn_end - fn_start).num_milliseconds());
+
+            Ok(Some(snapshot))
+        } else {
+            let fn_end = get_now()?.time();
+            debug!("===Workspace.get_snapshot() - Profiling: Took: {} to complete get_snapshot() function", (fn_end - fn_start).num_milliseconds());
+
+            Ok(None)
+        }
+    }
+
+    fn add_node(&mut self, parents: Option<Vec<NodeIndex<u32>>>, diff: Hash) -> NodeIndex<u32> {
+        let index = self.graph.add_node(diff.clone());
+        self.undirected_graph.add_node(diff.clone());
+        self.node_index_map.insert(diff, index);
+        if parents.is_some() {
+            for parent in parents.unwrap() {
+                self.graph.add_edge(index, parent, ());
+                self.undirected_graph.add_edge(index, parent, ());
+            }
+        }
+        index
+    }
+
+    pub fn get_node_index(&self, node: &Hash) -> Option<&NodeIndex<u32>> {
+        self.node_index_map.get(node)
+    }
+
+    // pub fn get_paths(
+    //     &self,
+    //     child: &Hash,
+    //     ancestor: &Hash,
+    // ) -> SocialContextResult<Vec<Vec<NodeIndex>>> {
+    //     debug!("===Workspace.get_paths(): Function start");
+    //     let fn_start = get_now()?.time();
+
+    //     let child_node = self.get_node_index(child).expect("Could not get child node index");
+    //     let ancestor_node = self.get_node_index(ancestor).expect("Could not get ancestor node index");
+    //     let paths = all_simple_paths::<Vec<_>, _>(&self.graph, *child_node, *ancestor_node, 0, None)
+    //         .collect::<Vec<_>>();
+
+    //     let fn_end = get_now()?.time();
+    //     debug!("===Workspace.get_paths() - Profiling: Took: {} to complete get_paths() function", (fn_end - fn_start).num_milliseconds());
+
+    //     Ok(paths)
+    // }
+
+    pub fn _find_common_ancestor(
+        &self,
+        root: NodeIndex<u32>,
+        second: NodeIndex<u32>,
+    ) -> Option<NodeIndex> {
+        let imm = simple_fast(&self.undirected_graph, root);
+        let imm = imm.dominators(second);
+        let mut index: Option<NodeIndex> = None;
+        match imm {
+            Some(imm_iter) => {
+                for dom in imm_iter {
+                    match index {
+                        Some(current_index) => {
+                            if current_index.index() > dom.index() {
+                                index = Some(dom)
+                            }
+                        }
+                        None => index = Some(dom),
+                    };
+                }
+            }
+            None => {}
+        };
+        index
+    }
+
+    pub fn squashed_diff<Retriever: PerspectiveDiffRetreiver>(
+        &self,
+    ) -> SocialContextResult<PerspectiveDiff> {
+        debug!("===Workspace.squashed_diff(): Function start");
+        let fn_start = get_now()?.time();
+
+        let mut out = PerspectiveDiff {
+            additions: vec![],
+            removals: vec![],
+        };
+        for (_key, value) in self.entry_map.iter() {
+            if value.diff == NULL_NODE() {
+                continue;
+            }
+            let diff_entry = Retriever::get::<PerspectiveDiff>(value.diff.clone())?;
+            out.additions.append(&mut diff_entry.additions.clone());
+            out.removals.append(&mut diff_entry.removals.clone());
+        }
+
+        let fn_end = get_now()?.time();
+        debug!("===Workspace.squashed_diff() - Profiling: Took: {} to complete squashed_diff() function", (fn_end - fn_start).num_milliseconds());
+
+        Ok(out)
+    }
+
+    // pub fn squashed_fast_forward_from(&self, base: Hash) -> SocialContextResult<PerspectiveDiff> {
+    //     match &self.sorted_diffs {
+    //         None => Err(SocialContextError::InternalError("Need to sort first for this fast-forward optimzed squash")),
+    //         Some(sorted_diffs) => {
+    //             let mut base_found = false;
+    //             let mut out = PerspectiveDiff {
+    //                 additions: vec![],
+    //                 removals: vec![],
+    //             };
+    //             for i in 0..sorted_diffs.len() {
+    //                 let current = &sorted_diffs[i];
+    //                 if !base_found {
+    //                     if current.0 == base {
+    //                         base_found = true;
+    //                     }
+    //                 } else {
+    //                     let diff_entry = get(current.1.diff.clone(), GetOptions::latest())?
+    //                         .ok_or(SocialContextError::InternalError(
+    //                             "Could not find diff entry for given diff entry reference",
+    //                         ))?
+    //                         .entry()
+    //                         .to_app_option::<PerspectiveDiff>()?
+    //                         .ok_or(SocialContextError::InternalError(
+    //                             "Expected element to contain app entry data",
+    //                         ))?;
+    //                     out.additions.append(&mut diff_entry.additions.clone());
+    //                     out.removals.append(&mut diff_entry.removals.clone());
+    //                 }
+    //             }
+    //             Ok(out)
+    //         }
+    //     }
+    // }
+
+    pub fn print_graph_debug(&self) {
+        if cfg!(test) {
+            println!(
+                "Directed: {:?}\n",
+                Dot::with_config(
+                    &self.graph.map(
+                        |_node_index, node| { crate::retriever::hash_to_node_id(node.to_owned()) },
+                        |_edge_index, _edge| {}
+                    ),
+                    &[]
+                )
+            );
+            println!(
+                "Undirected: {:?}\n",
+                Dot::with_config(
+                    &self.undirected_graph.map(
+                        |_node_index, node| { crate::retriever::hash_to_node_id(node.to_owned()) },
+                        |_edge_index, _edge| {}
+                    ),
+                    &[]
+                )
+            );
+        } else {
+            debug!(
+                "Directed: {:?}\n",
+                Dot::with_config(&self.graph, &[Config::NodeIndexLabel])
+            );
+            debug!(
+                "Undirected: {:?}\n",
+                Dot::with_config(&self.undirected_graph, &[])
+            );
+        }
+    }
+
+    pub fn all_ancestors(&self, child: &Hash) -> SocialContextResult<Vec<Hash>> {
+        debug!("===Workspace.all_ancestors(): Function start");
+        let fn_start = get_now()?.time();
+
+        let child_node = self
+            .get_node_index(child)
+            .expect("Could not get child node index");
+        let mut ancestors = vec![];
+        let mut visited = HashSet::new();
+        let mut stack = vec![*child_node];
+        while !stack.is_empty() {
+            let current = stack.pop().unwrap();
+            if visited.contains(&current) {
+                continue;
+            }
+            visited.insert(current);
+            let mut parents = self
+                .graph
+                .neighbors_directed(current, petgraph::Direction::Outgoing);
+            while let Some(parent) = parents.next() {
+                stack.push(parent);
+            }
+            ancestors.push(self.graph.node_weight(current).unwrap().to_owned());
+        }
+
+        let fn_end = get_now()?.time();
+        debug!("===Workspace.all_ancestors() - Profiling: Took: {} to complete all_ancestors() function", (fn_end - fn_start).num_milliseconds());
+
+        Ok(ancestors)
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::NULL_NODE;
+    use crate::link_adapter::workspace::Workspace;
+    use crate::retriever::{node_id_hash, MockPerspectiveGraph, GLOBAL_MOCKED_GRAPH};
+    use dot_structures;
+
+    #[test]
+    fn test_collect_until_common_ancestor_forked() {
+        fn update() {
+            let mut graph = GLOBAL_MOCKED_GRAPH.lock().unwrap();
+            *graph = MockPerspectiveGraph::from_dot(
+                "digraph {
+                0 [ label = \"0\" ]
+                1 [ label = \"1\" ]
+                2 [ label = \"2\" ]
+                3 [ label = \"3\" ]
+                4 [ label = \"4\" ]
+                5 [ label = \"5\" ]
+                6 [ label = \"6\" ]
+                7 [ label = \"7\" ]
+                8 [ label = \"8\" ]
+                9 [ label = \"9\" ]
+                10 [ label = \"10\" ]
+                11 [ label = \"11\" ]
+                12 [ label = \"12\" ]
+                1 -> 0 [ label = \"()\" ]
+                2 -> 1 [ label = \"()\" ]
+                3 -> 2 [ label = \"()\" ]
+                4 -> 3 [ label = \"()\" ]
+                5 -> 4 [ label = \"()\" ]
+                6 -> 5 [ label = \"()\" ]
+                7 -> 1 [ label = \"()\" ]
+                8 -> 7 [ label = \"()\" ]
+                9 -> 8 [ label = \"()\" ]
+                10 -> 9 [ label = \"()\" ]
+                11 -> 10 [ label = \"()\" ]
+                12 -> 11 [ label = \"()\" ]
+            }",
+            )
+            .unwrap();
+        }
+        update();
+
+        let node_1 = node_id_hash(&dot_structures::Id::Plain(String::from("1")));
+        let node_6 = node_id_hash(&dot_structures::Id::Plain(String::from("6")));
+        let node_12 = node_id_hash(&dot_structures::Id::Plain(String::from("12")));
+
+        let mut workspace = Workspace::new();
+        let res = workspace.build_diffs::<MockPerspectiveGraph>(node_12.clone(), node_6.clone());
+        assert!(res.is_ok());
+
+        assert!(workspace.common_ancestors.len() == 1);
+        assert_eq!(workspace.common_ancestors.first().unwrap(), &node_1);
+
+        assert_eq!(workspace.entry_map.len(), 12);
+
+        let node_2 = node_id_hash(&dot_structures::Id::Plain(String::from("2")));
+        let node_3 = node_id_hash(&dot_structures::Id::Plain(String::from("3")));
+        let node_4 = node_id_hash(&dot_structures::Id::Plain(String::from("4")));
+        let node_5 = node_id_hash(&dot_structures::Id::Plain(String::from("5")));
+        let node_7 = node_id_hash(&dot_structures::Id::Plain(String::from("7")));
+        let node_8 = node_id_hash(&dot_structures::Id::Plain(String::from("8")));
+        let node_9 = node_id_hash(&dot_structures::Id::Plain(String::from("9")));
+        let node_10 = node_id_hash(&dot_structures::Id::Plain(String::from("10")));
+        let node_11 = node_id_hash(&dot_structures::Id::Plain(String::from("11")));
+
+        assert!(workspace.entry_map.get(&node_1).is_some());
+        assert!(workspace.entry_map.get(&node_2).is_some());
+        assert!(workspace.entry_map.get(&node_3).is_some());
+        assert!(workspace.entry_map.get(&node_4).is_some());
+        assert!(workspace.entry_map.get(&node_5).is_some());
+        assert!(workspace.entry_map.get(&node_6).is_some());
+        assert!(workspace.entry_map.get(&node_7).is_some());
+        assert!(workspace.entry_map.get(&node_8).is_some());
+        assert!(workspace.entry_map.get(&node_9).is_some());
+        assert!(workspace.entry_map.get(&node_10).is_some());
+        assert!(workspace.entry_map.get(&node_11).is_some());
+        assert!(workspace.entry_map.get(&node_12).is_some());
+    }
+
+    #[test]
+    fn test_collect_until_common_ancestor_forward_to_merge_commit() {
+        fn update() {
+            let mut graph = GLOBAL_MOCKED_GRAPH.lock().unwrap();
+            *graph = MockPerspectiveGraph::from_dot(
+                "digraph {
+                0 [ label = \"0\" ]
+                1 [ label = \"1\" ]
+                2 [ label = \"2\" ]
+                3 [ label = \"3\" ]
+                4 [ label = \"4\" ]
+                5 [ label = \"5\" ]
+                6 [ label = \"6\" ]
+                7 [ label = \"7\" ]
+                8 [ label = \"8\" ]
+                9 [ label = \"9\" ]
+                10 [ label = \"10\" ]
+                11 [ label = \"11\" ]
+                12 [ label = \"12\" ]
+                13 [ label = \"12\" ]
+
+                1 -> 0 [ label = \"()\" ]
+                2 -> 1 [ label = \"()\" ]
+                3 -> 2 [ label = \"()\" ]
+                4 -> 3 [ label = \"()\" ]
+                5 -> 4 [ label = \"()\" ]
+                6 -> 5 [ label = \"()\" ]
+
+                7 -> 1 [ label = \"()\" ]
+                8 -> 7 [ label = \"()\" ]
+                9 -> 8 [ label = \"()\" ]
+                10 -> 9 [ label = \"()\" ]
+                11 -> 10 [ label = \"()\" ]
+
+                12 -> 11 [ label = \"()\" ]
+                12 -> 6  [ label = \"()\" ]
+
+                13 -> 12 [ label = \"()\" ]
+                
+            }",
+            )
+            .unwrap();
+        }
+        update();
+
+        let node_1 = node_id_hash(&dot_structures::Id::Plain(String::from("1")));
+        let node_6 = node_id_hash(&dot_structures::Id::Plain(String::from("6")));
+        let node_12 = node_id_hash(&dot_structures::Id::Plain(String::from("12")));
+        let node_13 = node_id_hash(&dot_structures::Id::Plain(String::from("13")));
+
+        let mut workspace = Workspace::new();
+        let res = workspace.build_diffs::<MockPerspectiveGraph>(node_13.clone(), node_6.clone());
+        assert!(res.is_ok());
+
+        assert!(workspace.common_ancestors.len() == 1);
+        assert_eq!(workspace.common_ancestors.first().unwrap(), &node_1);
+        assert_eq!(workspace.entry_map.len(), 13);
+
+        let node_2 = node_id_hash(&dot_structures::Id::Plain(String::from("2")));
+        let node_3 = node_id_hash(&dot_structures::Id::Plain(String::from("3")));
+        let node_4 = node_id_hash(&dot_structures::Id::Plain(String::from("4")));
+        let node_5 = node_id_hash(&dot_structures::Id::Plain(String::from("5")));
+        let node_7 = node_id_hash(&dot_structures::Id::Plain(String::from("7")));
+        let node_8 = node_id_hash(&dot_structures::Id::Plain(String::from("8")));
+        let node_9 = node_id_hash(&dot_structures::Id::Plain(String::from("9")));
+        let node_10 = node_id_hash(&dot_structures::Id::Plain(String::from("10")));
+        let node_11 = node_id_hash(&dot_structures::Id::Plain(String::from("11")));
+
+        assert!(workspace.entry_map.get(&node_1).is_some());
+        assert!(workspace.entry_map.get(&node_2).is_some());
+        assert!(workspace.entry_map.get(&node_3).is_some());
+        assert!(workspace.entry_map.get(&node_4).is_some());
+        assert!(workspace.entry_map.get(&node_5).is_some());
+        assert!(workspace.entry_map.get(&node_6).is_some());
+        assert!(workspace.entry_map.get(&node_7).is_some());
+        assert!(workspace.entry_map.get(&node_8).is_some());
+        assert!(workspace.entry_map.get(&node_9).is_some());
+        assert!(workspace.entry_map.get(&node_10).is_some());
+        assert!(workspace.entry_map.get(&node_11).is_some());
+        assert!(workspace.entry_map.get(&node_12).is_some());
+        assert!(workspace.entry_map.get(&node_13).is_some());
+    }
+
+    #[test]
+    fn test_collect_until_common_ancestor_multi_fork() {
+        fn update() {
+            let mut graph = GLOBAL_MOCKED_GRAPH.lock().unwrap();
+            *graph = MockPerspectiveGraph::from_dot(
+                r#"digraph {
+                0 [ label = "0" ]
+                1 [ label = "1" ]
+                2 [ label = "2" ]
+                3 [ label = "3" ]
+                4 [ label = "4" ]
+                5 [ label = "5" ]
+
+                1 -> 0 [ label = "()" ]
+                2 -> 1 [ label = "()" ]
+
+                3 -> 0 [ label = "()" ]
+
+                4 -> 0 [ label = "()" ]
+                5 -> 4 [ label = "()" ]
+            }"#,
+            )
+            .unwrap();
+        }
+        update();
+
+        let node_0 = node_id_hash(&dot_structures::Id::Plain(String::from("0")));
+        let node_1 = node_id_hash(&dot_structures::Id::Plain(String::from("1")));
+        let node_2 = node_id_hash(&dot_structures::Id::Plain(String::from("2")));
+        let node_3 = node_id_hash(&dot_structures::Id::Plain(String::from("3")));
+        //let node_4 = node_id_hash(&dot_structures::Id::Plain(String::from("4")));
+        //let node_5 = node_id_hash(&dot_structures::Id::Plain(String::from("5")));
+
+        let mut workspace = Workspace::new();
+        let res = workspace.build_diffs::<MockPerspectiveGraph>(node_3.clone(), node_2.clone());
+        assert!(res.is_ok());
+
+        assert!(workspace.common_ancestors.len() == 1);
+        assert_eq!(workspace.common_ancestors.first().unwrap(), &node_0);
+        assert_eq!(workspace.entry_map.len(), 4);
+
+        assert!(workspace.entry_map.get(&node_0).is_some());
+        assert!(workspace.entry_map.get(&node_1).is_some());
+        assert!(workspace.entry_map.get(&node_2).is_some());
+        assert!(workspace.entry_map.get(&node_3).is_some());
+    }
+
+    #[test]
+    fn test_collect_until_common_ancestor_fork_on_top_of_merge() {
+        fn update() {
+            let mut graph = GLOBAL_MOCKED_GRAPH.lock().unwrap();
+            *graph = MockPerspectiveGraph::from_dot(
+                r#"digraph {
+                0 [ label = "0" ]
+                1 [ label = "1" ]
+                2 [ label = "2" ]
+                3 [ label = "3" ]
+                4 [ label = "4" ]
+                5 [ label = "5" ]
+
+                1 -> 0 
+                2 -> 1 
+                3 -> 2 
+                4 -> 3 
+                5 -> 4
+                
+                6
+                7
+                8
+                9
+                10
+
+                7 -> 6
+                8 -> 7
+                9 -> 8
+                10 -> 9
+
+                8 -> 0
+                
+            }"#,
+            )
+            .unwrap();
+        }
+        update();
+
+        let node_0 = node_id_hash(&dot_structures::Id::Plain(String::from("0")));
+        let node_1 = node_id_hash(&dot_structures::Id::Plain(String::from("1")));
+        let node_2 = node_id_hash(&dot_structures::Id::Plain(String::from("2")));
+        let node_3 = node_id_hash(&dot_structures::Id::Plain(String::from("3")));
+        let node_4 = node_id_hash(&dot_structures::Id::Plain(String::from("4")));
+        let node_5 = node_id_hash(&dot_structures::Id::Plain(String::from("5")));
+        //let node_6 = node_id_hash(&dot_structures::Id::Plain(String::from("6")));
+        //let node_7 = node_id_hash(&dot_structures::Id::Plain(String::from("7")));
+        let node_8 = node_id_hash(&dot_structures::Id::Plain(String::from("8")));
+        let node_9 = node_id_hash(&dot_structures::Id::Plain(String::from("9")));
+        let node_10 = node_id_hash(&dot_structures::Id::Plain(String::from("10")));
+
+        let mut workspace = Workspace::new();
+        let res = workspace.build_diffs::<MockPerspectiveGraph>(node_5.clone(), node_10.clone());
+        println!("Got result: {:#?}", res);
+        assert!(res.is_ok());
+
+        assert!(workspace.common_ancestors.len() == 2);
+        assert_eq!(workspace.common_ancestors.first().unwrap(), &node_0);
+        assert_eq!(workspace.common_ancestors.last().unwrap(), &NULL_NODE());
+        assert_eq!(workspace.entry_map.len(), 12);
+
+        assert!(workspace.entry_map.get(&node_0).is_some());
+        assert!(workspace.entry_map.get(&node_1).is_some());
+        assert!(workspace.entry_map.get(&node_2).is_some());
+        assert!(workspace.entry_map.get(&node_3).is_some());
+        assert!(workspace.entry_map.get(&node_4).is_some());
+        assert!(workspace.entry_map.get(&node_5).is_some());
+        //assert!(workspace.entry_map.get(&node_7).is_some());
+        assert!(workspace.entry_map.get(&node_8).is_some());
+        assert!(workspace.entry_map.get(&node_9).is_some());
+        assert!(workspace.entry_map.get(&node_10).is_some());
+    }
+
+    #[test]
+    fn test_collect_until_common_ancestor_unconnected_fork() {
+        fn update() {
+            let mut graph = GLOBAL_MOCKED_GRAPH.lock().unwrap();
+            *graph = MockPerspectiveGraph::from_dot(
+                r#"digraph {
+                0 [ label = "0" ]
+                1 [ label = "1" ]
+                2 [ label = "2" ]
+                3 [ label = "3" ]
+                4 [ label = "4" ]
+                5 [ label = "5" ]
+
+                1 -> 0 
+                2 -> 1 
+                3 -> 2 
+                4 -> 3 
+                5 -> 4
+                
+                6
+                7
+                8
+                9
+                10
+
+                7 -> 6
+                8 -> 7
+                9 -> 8
+                10 -> 9
+            }"#,
+            )
+            .unwrap();
+        }
+        update();
+
+        let node_0 = node_id_hash(&dot_structures::Id::Plain(String::from("0")));
+        let node_1 = node_id_hash(&dot_structures::Id::Plain(String::from("1")));
+        let node_2 = node_id_hash(&dot_structures::Id::Plain(String::from("2")));
+        let node_3 = node_id_hash(&dot_structures::Id::Plain(String::from("3")));
+        let node_4 = node_id_hash(&dot_structures::Id::Plain(String::from("4")));
+        let node_5 = node_id_hash(&dot_structures::Id::Plain(String::from("5")));
+        let node_6 = node_id_hash(&dot_structures::Id::Plain(String::from("6")));
+        let node_7 = node_id_hash(&dot_structures::Id::Plain(String::from("7")));
+        let node_8 = node_id_hash(&dot_structures::Id::Plain(String::from("8")));
+        let node_9 = node_id_hash(&dot_structures::Id::Plain(String::from("9")));
+        let node_10 = node_id_hash(&dot_structures::Id::Plain(String::from("10")));
+
+        let mut workspace = Workspace::new();
+        let res = workspace.build_diffs::<MockPerspectiveGraph>(node_5.clone(), node_10.clone());
+        println!("Got result: {:#?}", res);
+        assert!(res.is_ok());
+
+        assert!(workspace.common_ancestors.len() == 1);
+        assert_eq!(workspace.common_ancestors.first().unwrap(), &NULL_NODE());
+        assert_eq!(workspace.entry_map.len(), 12);
+
+        assert!(workspace.entry_map.get(&NULL_NODE()).is_some());
+        assert!(workspace.entry_map.get(&node_0).is_some());
+        assert!(workspace.entry_map.get(&node_1).is_some());
+        assert!(workspace.entry_map.get(&node_2).is_some());
+        assert!(workspace.entry_map.get(&node_3).is_some());
+        assert!(workspace.entry_map.get(&node_4).is_some());
+        assert!(workspace.entry_map.get(&node_5).is_some());
+        assert!(workspace.entry_map.get(&node_6).is_some());
+        assert!(workspace.entry_map.get(&node_7).is_some());
+        assert!(workspace.entry_map.get(&node_8).is_some());
+        assert!(workspace.entry_map.get(&node_9).is_some());
+        assert!(workspace.entry_map.get(&node_10).is_some());
+    }
+
+    #[test]
+    fn test_collect_until_common_ancestor_ff_to_merge() {
+        fn update() {
+            let mut graph = GLOBAL_MOCKED_GRAPH.lock().unwrap();
+            *graph = MockPerspectiveGraph::from_dot(
+                r#"digraph {
+                0 [ label = "0" ]
+                1 [ label = "1" ]
+                2 [ label = "2" ]
+                3 [ label = "3" ]
+
+                1 -> 0 
+                2 -> 0 
+                3 -> 1 
+                3 -> 2
+                
+            }"#,
+            )
+            .unwrap();
+        }
+        update();
+
+        let node_0 = node_id_hash(&dot_structures::Id::Plain(String::from("0")));
+        let node_1 = node_id_hash(&dot_structures::Id::Plain(String::from("1")));
+        let node_2 = node_id_hash(&dot_structures::Id::Plain(String::from("2")));
+        let node_3 = node_id_hash(&dot_structures::Id::Plain(String::from("3")));
+
+        let mut workspace = Workspace::new();
+        let res = workspace.build_diffs::<MockPerspectiveGraph>(node_1.clone(), node_3.clone());
+        println!("Got result: {:#?}", res);
+        assert!(res.is_ok());
+
+        println!("common ancestors: {:?}", workspace.common_ancestors);
+        assert_eq!(workspace.common_ancestors.len(), 2);
+        assert_eq!(workspace.common_ancestors.first().unwrap(), &node_1);
+        assert_eq!(workspace.common_ancestors.last().unwrap(), &node_0);
+        assert_eq!(workspace.entry_map.len(), 4);
+
+        assert!(workspace.entry_map.get(&node_0).is_some());
+        assert!(workspace.entry_map.get(&node_1).is_some());
+        assert!(workspace.entry_map.get(&node_2).is_some());
+        assert!(workspace.entry_map.get(&node_3).is_some());
+    }
+
+    #[test]
+    fn test_collect_until_common_ancestor_complex_merge() {
+        fn update() {
+            let mut graph = GLOBAL_MOCKED_GRAPH.lock().unwrap();
+            *graph = MockPerspectiveGraph::from_dot(
+                r#"digraph {
+                0 [ label = "0" ]
+                1 [ label = "1" ]
+                2 [ label = "2" ]
+                3 [ label = "3" ]
+                4 [ label = "4" ]
+                5 [ label = "5" ]
+                6 [ label = "6" ]
+                1 -> 0 [ label = "()" ]
+                2 -> 0 [ label = "()" ]
+                3 -> 0 [ label = "()" ]
+                4 -> 2 [ label = "()" ]
+                5 -> 4 [ label = "()" ]
+                5 -> 3 [ label = "()" ]
+                6 -> 5 [ label = "()" ]
+            }"#,
+            )
+            .unwrap();
+        }
+        update();
+
+        let node_0 = node_id_hash(&dot_structures::Id::Plain(String::from("0")));
+        let node_1 = node_id_hash(&dot_structures::Id::Plain(String::from("1")));
+        let node_2 = node_id_hash(&dot_structures::Id::Plain(String::from("2")));
+        let node_3 = node_id_hash(&dot_structures::Id::Plain(String::from("3")));
+        let node_4 = node_id_hash(&dot_structures::Id::Plain(String::from("4")));
+        let node_5 = node_id_hash(&dot_structures::Id::Plain(String::from("5")));
+        let node_6 = node_id_hash(&dot_structures::Id::Plain(String::from("6")));
+
+        let mut workspace = Workspace::new();
+        let res = workspace.build_diffs::<MockPerspectiveGraph>(node_1.clone(), node_6.clone());
+        println!("Got result: {:#?}", res);
+        assert!(res.is_ok());
+
+        println!("common ancestors: {:?}", workspace.common_ancestors);
+        assert_eq!(workspace.common_ancestors.len(), 1);
+        assert_eq!(workspace.common_ancestors.last().unwrap(), &node_0);
+        assert_eq!(workspace.entry_map.len(), 7);
+
+        assert!(workspace.entry_map.get(&node_0).is_some());
+        assert!(workspace.entry_map.get(&node_1).is_some());
+        assert!(workspace.entry_map.get(&node_2).is_some());
+        assert!(workspace.entry_map.get(&node_3).is_some());
+        assert!(workspace.entry_map.get(&node_4).is_some());
+        assert!(workspace.entry_map.get(&node_5).is_some());
+        assert!(workspace.entry_map.get(&node_6).is_some());
+    }
+
+    #[test]
+    fn test_collect_until_common_ancestor_complex_merge_implicit_zero() {
+        fn update() {
+            let mut graph = GLOBAL_MOCKED_GRAPH.lock().unwrap();
+            *graph = MockPerspectiveGraph::from_dot(
+                r#"digraph {
+                1 [ label = "1" ]
+                2 [ label = "2" ]
+                3 [ label = "3" ]
+                4 [ label = "4" ]
+                5 [ label = "5" ]
+                6 [ label = "6" ]
+                4 -> 2 [ label = "()" ]
+                5 -> 4 [ label = "()" ]
+                5 -> 3 [ label = "()" ]
+                6 -> 5 [ label = "()" ]
+            }"#,
+            )
+            .unwrap();
+        }
+        update();
+
+        let node_1 = node_id_hash(&dot_structures::Id::Plain(String::from("1")));
+        let node_6 = node_id_hash(&dot_structures::Id::Plain(String::from("6")));
+
+        let mut workspace = Workspace::new();
+        let res = workspace.build_diffs::<MockPerspectiveGraph>(node_1.clone(), node_6.clone());
+        println!("Got result: {:#?}", res);
+        assert!(res.is_ok());
+        assert_eq!(workspace.common_ancestors.len(), 2);
+        assert_eq!(workspace.common_ancestors.last().unwrap(), &NULL_NODE());
+    }
+
+    #[test]
+    fn real_world_graph() {
+        fn update() {
+            let mut graph = GLOBAL_MOCKED_GRAPH.lock().unwrap();
+            *graph = MockPerspectiveGraph::from_dot(
+                r#"digraph {
+                0 [ label = "0" ]
+                1 [ label = "1" ]
+                2 [ label = "2" ]
+                3 [ label = "3" ]
+                4 [ label = "4" ]
+                5 [ label = "5" ]
+                6 [ label = "6" ]
+                7 [ label = "7" ]
+                8 [ label = "8" ]
+                9 [ label = "9" ]
+                10 [ label = "10" ]
+                11 [ label = "11" ]
+                12 [ label = "12" ]
+                13 [ label = "13" ]
+                14 [ label = "14" ]
+                15 [ label = "15" ]
+                16 [ label = "16" ]
+                1 -> 0 [ label = "()" ]
+                2 -> 1 [ label = "()" ]
+                3 -> 2 [ label = "()" ]
+                4 -> 3 [ label = "()" ]
+                5 -> 4 [ label = "()" ]
+                6 -> 5 [ label = "()" ]
+                7 -> 6 [ label = "()" ]
+                8 -> 7 [ label = "()" ]
+                9 -> 8 [ label = "()" ]
+                10 -> 9 [ label = "()" ]
+                11 -> 1 [ label = "()" ]
+                12 -> 2 [ label = "()" ]
+                12 -> 11 [ label = "()" ]
+                13 -> 3 [ label = "()" ]
+                13 -> 12 [ label = "()" ]
+                14 -> 6 [ label = "()" ]
+                14 -> 13 [ label = "()" ]
+                15 -> 7 [ label = "()" ]
+                15 -> 14 [ label = "()" ]
+                16 -> 8 [ label = "()" ]
+                16 -> 15 [ label = "()" ]
+            }"#,
+            )
+            .unwrap();
+        }
+        update();
+
+        let node_10 = node_id_hash(&dot_structures::Id::Plain(String::from("10")));
+        let node_16 = node_id_hash(&dot_structures::Id::Plain(String::from("16")));
+        let node_8 = node_id_hash(&dot_structures::Id::Plain(String::from("8")));
+
+        let mut workspace = Workspace::new();
+        let res = workspace.build_diffs::<MockPerspectiveGraph>(node_16.clone(), node_10.clone());
+        assert!(res.is_ok());
+        assert_eq!(workspace.common_ancestors.len(), 6);
+        assert_eq!(workspace.common_ancestors.first().unwrap(), &node_8);
+        println!("Got result: {:#?}", res);
+    }
+}
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/retriever.rs b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/retriever.rs
new file mode 100644
index 000000000..e1b404571
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/retriever.rs
@@ -0,0 +1,35 @@
+use crate::Hash;
+use crate::errors::SocialContextResult;
+use hdk::prelude::*;
+use chrono::{DateTime, Utc};
+
+pub mod holochain;
+pub mod mock;
+
+pub use holochain::HolochainRetreiver;
+pub use mock::*;
+use perspective_diff_sync_integrity::{LocalHashReference, HashReference};
+
+pub trait PerspectiveDiffRetreiver {
+    fn get<T>(hash: Hash) -> SocialContextResult<T> 
+        where
+        T: TryFrom<SerializedBytes, Error = SerializedBytesError>;
+
+    fn get_with_timestamp<T>(hash: Hash) -> SocialContextResult<(T, DateTime<Utc>)> 
+        where
+        T: TryFrom<SerializedBytes, Error = SerializedBytesError>;
+
+    fn create_entry<I, E: std::fmt::Debug, E2>(entry: I) -> SocialContextResult<Hash>
+        where
+        ScopedEntryDefIndex: for<'a> TryFrom<&'a I, Error = E2>,
+        EntryVisibility: for<'a> From<&'a I>,
+        Entry: TryFrom<I, Error = E>,
+        WasmError: From<E>,
+        WasmError: From<E2>;
+    fn current_revision() -> SocialContextResult<Option<LocalHashReference>>;
+    fn latest_revision() -> SocialContextResult<Option<HashReference>>;
+    fn update_current_revision(hash: Hash, timestamp: DateTime<Utc>) -> SocialContextResult<()>;
+    fn update_latest_revision(hash: Hash, timestamp: DateTime<Utc>) -> SocialContextResult<()>;
+}
+
+
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/retriever/holochain.rs b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/retriever/holochain.rs
new file mode 100644
index 000000000..c97a7f3bd
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/retriever/holochain.rs
@@ -0,0 +1,199 @@
+use std::str::FromStr;
+
+use chrono::{DateTime, NaiveDateTime, Utc};
+use hdk::prelude::*;
+use perspective_diff_sync_integrity::{
+    Anchor, EntryTypes, HashReference, LinkTypes, LocalHashReference,
+};
+
+use super::PerspectiveDiffRetreiver;
+use crate::errors::{SocialContextError, SocialContextResult};
+use crate::utils::dedup;
+use crate::Hash;
+
+pub struct HolochainRetreiver;
+
+impl PerspectiveDiffRetreiver for HolochainRetreiver {
+    fn get<T>(hash: Hash) -> SocialContextResult<T>
+    where
+        T: TryFrom<SerializedBytes, Error = SerializedBytesError>,
+    {
+        get(hash, GetOptions::latest())?
+            .ok_or(SocialContextError::InternalError(
+                "HolochainRetreiver: Could not find entry",
+            ))?
+            .entry()
+            .to_app_option::<T>()?
+            .ok_or(SocialContextError::InternalError(
+                "Expected element to contain app entry data",
+            ))
+    }
+
+    fn get_with_timestamp<T>(hash: Hash) -> SocialContextResult<(T, DateTime<Utc>)>
+    where
+        T: TryFrom<SerializedBytes, Error = SerializedBytesError>,
+    {
+        let element = get(hash, GetOptions::latest())?;
+        let element = element.ok_or(SocialContextError::InternalError(
+            "HolochainRetreiver: Could not find entry",
+        ))?;
+        let entry = element.entry();
+        let timestamp = element.action().timestamp().0 as u64;
+        let duration = std::time::Duration::from_micros(timestamp);
+        let timestamp = DateTime::<Utc>::from_utc(
+            NaiveDateTime::from_timestamp(duration.as_secs() as i64, duration.subsec_nanos()),
+            Utc,
+        );
+        let entry = entry
+            .to_app_option::<T>()?
+            .ok_or(SocialContextError::InternalError(
+                "Expected element to contain app entry data",
+            ))?;
+        Ok((entry, timestamp))
+    }
+
+    fn create_entry<I, E: std::fmt::Debug, E2>(entry: I) -> SocialContextResult<Hash>
+    where
+        ScopedEntryDefIndex: for<'a> TryFrom<&'a I, Error = E2>,
+        EntryVisibility: for<'a> From<&'a I>,
+        Entry: TryFrom<I, Error = E>,
+        WasmError: From<E>,
+        WasmError: From<E2>,
+    {
+        create_entry::<I, E, E2>(entry).map_err(|e| SocialContextError::Wasm(e))
+    }
+
+    fn current_revision() -> SocialContextResult<Option<LocalHashReference>> {
+        let query = query(
+            QueryFilter::new()
+                .entry_type(EntryType::App(AppEntryDef {
+                    entry_index: 4.into(),
+                    zome_index: 0.into(),
+                    visibility: EntryVisibility::Private,
+                }))
+                .include_entries(true)
+                .descending(),
+        );
+
+        let revision = match query {
+            Ok(records) => {
+                if records.len() == 0 {
+                    None
+                } else {
+                    let record = records[0].clone();
+                    let entry = record
+                        .entry
+                        .to_app_option::<LocalHashReference>()
+                        .unwrap()
+                        .unwrap();
+                    Some(entry)
+                }
+            }
+            Err(e) => {
+                debug!("PerspectiveDiffSync.current_revision(): Error when getting current revision: {:?}", e);
+                None
+            }
+        };
+        Ok(revision)
+    }
+
+    fn latest_revision() -> SocialContextResult<Option<HashReference>> {
+        let latest_root_entry = get_latest_revision_anchor();
+        let latest_root_entry_hash = hash_entry(latest_root_entry.clone())?;
+        // let input = GetLinksInputBuilder::try_new(
+        //     latest_root_entry_hash,
+        //     LinkTypes::Index
+        // )
+        // .unwrap()
+        // .build();
+        let mut latest_revision_links = get_links(latest_root_entry_hash, LinkTypes::Index, None)?;
+
+        latest_revision_links.sort_by(|link_a, link_b| {
+            let link_a_str = std::str::from_utf8(&link_a.tag.0).unwrap();
+            let link_b_str = std::str::from_utf8(&link_b.tag.0).unwrap();
+            let link_a = DateTime::<Utc>::from_str(link_a_str).unwrap();
+            let link_b = DateTime::<Utc>::from_str(link_b_str).unwrap();
+            link_a.cmp(&link_b)
+        });
+
+        let mut latest_hash_revisions = latest_revision_links
+            .into_iter()
+            .map(|link| {
+                let hash =
+                    link.target
+                        .into_action_hash()
+                        .ok_or(SocialContextError::InternalError(
+                            "Could not convert link target to hash",
+                        ))?;
+                let timestamp = std::str::from_utf8(&link.tag.0)
+                    .map_err(|_| SocialContextError::InternalError("Could not tag to string"))?;
+
+                let timestamp = DateTime::<Utc>::from_str(timestamp).map_err(|_| {
+                    SocialContextError::InternalError("Could not convert string to timestamp")
+                })?;
+                Ok(HashReference { hash, timestamp })
+            })
+            .collect::<SocialContextResult<Vec<HashReference>>>()?;
+
+        Ok(latest_hash_revisions.pop())
+    }
+
+    fn update_current_revision(hash: Hash, timestamp: DateTime<Utc>) -> SocialContextResult<()> {
+        let hash_ref = LocalHashReference { hash, timestamp };
+        create_entry(EntryTypes::LocalHashReference(hash_ref.clone()))?;
+        Ok(())
+    }
+
+    fn update_latest_revision(hash: Hash, timestamp: DateTime<Utc>) -> SocialContextResult<()> {
+        let latest_root_entry = get_latest_revision_anchor();
+        let _latest_root_entry_action =
+            self::create_entry(EntryTypes::Anchor(latest_root_entry.clone()))?;
+
+        create_link(
+            hash_entry(latest_root_entry)?,
+            hash,
+            LinkTypes::Index,
+            LinkTag::new(timestamp.to_string()),
+        )?;
+
+        Ok(())
+    }
+}
+
+fn get_latest_revision_anchor() -> Anchor {
+    Anchor("latest_revision".to_string())
+}
+
+pub fn get_active_agent_anchor() -> Anchor {
+    Anchor("active_agent".to_string())
+}
+
+pub fn get_active_agents() -> SocialContextResult<Vec<AgentPubKey>> {
+    // let input = GetLinksInputBuilder::try_new(
+    //     hash_entry(get_active_agent_anchor())?,
+    //     LinkTypes::Index
+    // )
+    // .unwrap()
+    // .tag_prefix(LinkTag::new("active_agent"))
+    // .build();
+    let recent_agents = get_links(hash_entry(get_active_agent_anchor())?, LinkTypes::Index, Some(LinkTag::new("active_agent")))?;
+
+    let recent_agents = recent_agents
+        .into_iter()
+        .map(|val| {
+            let entry: EntryHash = val.target.try_into().unwrap();
+            AgentPubKey::from(entry)
+        })
+        .collect();
+
+    //Dedup the agents
+    let mut recent_agents = dedup(&recent_agents);
+    //Remove ourself from the agents
+    let me = agent_info()?.agent_latest_pubkey;
+    let index = recent_agents.iter().position(|x| *x == me);
+    if let Some(index) = index {
+        recent_agents.remove(index);
+    };
+
+    Ok(recent_agents)
+}
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/retriever/mock.rs b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/retriever/mock.rs
new file mode 100644
index 000000000..ca83bcc29
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/retriever/mock.rs
@@ -0,0 +1,530 @@
+use chrono::{DateTime, Utc};
+use dot_structures;
+use graphviz_rust;
+use hdk::prelude::*;
+use perspective_diff_sync_integrity::{
+    HashReference, LinkExpression, LocalHashReference, PerspectiveDiff,
+    PerspectiveDiffEntryReference,
+};
+use sha2::{Digest, Sha256};
+use std::collections::BTreeMap;
+use std::sync::Mutex;
+
+use super::PerspectiveDiffRetreiver;
+use crate::errors::{SocialContextError, SocialContextResult};
+use crate::link_adapter::workspace::NULL_NODE;
+use crate::utils::create_link_expression;
+use crate::Hash;
+
+#[derive(Debug)]
+pub struct MockPerspectiveGraph {
+    pub graph_map: BTreeMap<Hash, SerializedBytes>,
+}
+
+impl PerspectiveDiffRetreiver for MockPerspectiveGraph {
+    fn get<T>(hash: Hash) -> SocialContextResult<T>
+    where
+        T: TryFrom<SerializedBytes, Error = SerializedBytesError>,
+    {
+        let value = &GLOBAL_MOCKED_GRAPH
+            .lock()
+            .expect("Could not get lock on graph map")
+            .graph_map
+            .get(&hash)
+            .expect("Could not find entry in map")
+            .to_owned();
+        Ok(T::try_from(value.to_owned())?)
+    }
+
+    fn get_with_timestamp<T>(hash: Hash) -> SocialContextResult<(T, DateTime<Utc>)>
+    where
+        T: TryFrom<SerializedBytes, Error = SerializedBytesError>,
+    {
+        let value = &GLOBAL_MOCKED_GRAPH
+            .lock()
+            .expect("Could not get lock on graph map")
+            .graph_map
+            .get(&hash)
+            .expect("Could not find entry in map")
+            .to_owned();
+        Ok((T::try_from(value.to_owned())?, Utc::now()))
+    }
+
+    fn create_entry<I, E: std::fmt::Debug, E2>(entry: I) -> SocialContextResult<Hash>
+    where
+        ScopedEntryDefIndex: for<'a> TryFrom<&'a I, Error = E2>,
+        EntryVisibility: for<'a> From<&'a I>,
+        Entry: TryFrom<I, Error = E>,
+        WasmError: From<E>,
+        WasmError: From<E2>,
+    {
+        let mut object_store = GLOBAL_MOCKED_GRAPH
+            .lock()
+            .expect("Could not get lock on OBJECT_STORE");
+
+        let entry: Entry = entry.try_into().expect("Could not get Entry");
+        let sb = match entry {
+            Entry::App(bytes) => bytes,
+            _ => panic!("Should not get any entry except app"),
+        };
+        let bytes = sb.bytes();
+
+        let mut hasher = Sha256::new();
+        hasher.update(bytes);
+        let mut result = hasher.finalize().as_slice().to_owned();
+        result.append(&mut vec![0xdb, 0xdb, 0xdb, 0xdb]);
+
+        let hash = ActionHash::from_raw_36(result);
+        object_store.graph_map.insert(hash.clone(), sb.0);
+        Ok(hash)
+    }
+
+    fn current_revision() -> SocialContextResult<Option<LocalHashReference>> {
+        let revision = CURRENT_REVISION
+            .lock()
+            .expect("Could not get lock on CURRENT_REVISION");
+        Ok(revision.clone().map(|val| LocalHashReference {
+            hash: val,
+            timestamp: Utc::now(),
+        }))
+    }
+
+    fn latest_revision() -> SocialContextResult<Option<HashReference>> {
+        let revision = LATEST_REVISION
+            .lock()
+            .expect("Could not get lock on LATEST_REVISION");
+        Ok(revision.clone().map(|val| HashReference {
+            hash: val,
+            timestamp: Utc::now(),
+        }))
+    }
+
+    fn update_current_revision(hash: Hash, _timestamp: DateTime<Utc>) -> SocialContextResult<()> {
+        let mut revision = CURRENT_REVISION
+            .lock()
+            .expect("Could not get lock on CURRENT_REVISION");
+        *revision = Some(hash);
+        Ok(())
+    }
+
+    fn update_latest_revision(hash: Hash, _timestamp: DateTime<Utc>) -> SocialContextResult<()> {
+        let mut revision = LATEST_REVISION
+            .lock()
+            .expect("Could not get lock on LATEST_REVISION");
+        *revision = Some(hash);
+        Ok(())
+    }
+}
+
+pub struct GraphInput {
+    pub nodes: u8,
+    pub associations: Vec<Associations>,
+}
+
+pub struct Associations {
+    pub node_source: u8,
+    pub node_targets: Vec<u8>,
+}
+
+#[allow(dead_code)]
+pub fn node_id_hash(id: &dot_structures::Id) -> Hash {
+    let mut string = match id {
+        dot_structures::Id::Html(s) => s,
+        dot_structures::Id::Escaped(s) => s,
+        dot_structures::Id::Plain(s) => s,
+        dot_structures::Id::Anonymous(s) => s,
+    }
+    .clone();
+    if string.len() > 36 {
+        let _ = string.split_off(36);
+    } else {
+        while string.len() < 36 {
+            string.push_str("x");
+        }
+    }
+    ActionHash::from_raw_36(string.into_bytes())
+}
+
+#[allow(dead_code)]
+pub fn hash_to_node_id(hash: ActionHash) -> String {
+    if hash == NULL_NODE() {
+        return String::from("NULL_NODE");
+    };
+    let hash_bytes = hash.get_raw_36();
+
+    match std::str::from_utf8(hash_bytes) {
+        Ok(node_id_string) => {
+            let string_split = node_id_string
+                .split("x")
+                .collect::<Vec<&str>>()
+                .first()
+                .unwrap()
+                .to_owned();
+            string_split.to_string()
+        }
+        Err(_err) => hash.to_string(),
+    }
+}
+
+// #[allow(dead_code)]
+// pub fn string_to_node_id(mut hash: String) -> String {
+//     if hash == NULL_NODE().to_string() {
+//         return String::from("NULL_NODE")
+//     };
+//     if hash.len() > 36 {
+//         let _ = hash.split_off(36);
+//     };
+//     let hash = ActionHash::from_raw_36(hash.into_bytes());
+//     let hash = hash.get_raw_36();
+//     let node_id_string = std::str::from_utf8(hash).expect("could not get string from hash array");
+//     let string_split = node_id_string.split("x").collect::<Vec<&str>>().first().unwrap().to_owned();
+//     string_split.to_string()
+// }
+
+#[allow(dead_code)]
+pub fn create_node_id_link_expression(node_id: u32) -> LinkExpression {
+    let node_id = node_id.to_string();
+    let node_id = dot_structures::Id::Plain(node_id);
+    let node = &node_id_hash(&node_id).to_string();
+    create_link_expression(node, node)
+}
+
+#[allow(dead_code)]
+pub fn create_node_id_vec(range_start: u32, range_end: u32) -> Vec<LinkExpression> {
+    let mut out = vec![];
+    for n in range_start..=range_end {
+        out.push(create_node_id_link_expression(n));
+    }
+    out
+}
+
+// #[allow(dead_code)]
+// pub fn link_expression_to_node_id(links: &mut Vec<LinkExpression>) {
+//     links.iter_mut().for_each(|link| {
+//         if link.data.source.is_some() {
+//             link.data.source = Some(string_to_node_id(link.data.source.clone().unwrap()));
+//         }
+//         if link.data.target.is_some() {
+//             link.data.target = Some(string_to_node_id(link.data.target.clone().unwrap()));
+//         }
+//     })
+// }
+
+#[allow(dead_code)]
+fn unwrap_vertex(v: dot_structures::Vertex) -> Option<dot_structures::NodeId> {
+    match v {
+        dot_structures::Vertex::N(id) => Some(id),
+        _ => None,
+    }
+}
+
+#[allow(dead_code)]
+fn unwrap_edge(
+    edge: dot_structures::Edge,
+) -> Option<(dot_structures::NodeId, dot_structures::NodeId)> {
+    match edge.ty {
+        dot_structures::EdgeTy::Pair(a, b) => {
+            let au = unwrap_vertex(a);
+            let ab = unwrap_vertex(b);
+            if au.is_some() && ab.is_some() {
+                Some((au.unwrap(), ab.unwrap()))
+            } else {
+                None
+            }
+        }
+        _ => None,
+    }
+}
+
+impl MockPerspectiveGraph {
+    pub fn new(graph_input: GraphInput) -> MockPerspectiveGraph {
+        let mut graph = MockPerspectiveGraph {
+            graph_map: BTreeMap::new(),
+        };
+
+        for n in 0..graph_input.nodes {
+            let mocked_hash = ActionHash::from_raw_36(vec![n; 36]);
+            let associations: Vec<&Associations> = graph_input
+                .associations
+                .iter()
+                .filter(|association| association.node_source == n)
+                .collect();
+            let parents = if associations.len() > 0 {
+                let mut temp = vec![];
+                for association in associations.clone() {
+                    for targets in association.node_targets.clone() {
+                        temp.push(ActionHash::from_raw_36(vec![targets; 36]))
+                    }
+                }
+                Some(temp)
+            } else {
+                None
+            };
+            let mocked_diff = PerspectiveDiffEntryReference::new(mocked_hash.clone(), parents);
+            let sb = mocked_diff
+                .try_into()
+                .expect("Could not create serialized bytes for mocked_diff");
+            graph.graph_map.insert(mocked_hash, sb);
+        }
+
+        graph
+    }
+
+    #[allow(dead_code)]
+    pub fn from_dot(source: &str) -> SocialContextResult<MockPerspectiveGraph> {
+        match graphviz_rust::parse(source)
+            .map_err(|_| SocialContextError::InternalError("Can't parse as DOT string"))?
+        {
+            dot_structures::Graph::Graph { .. } => Err(SocialContextError::InternalError(
+                "Can't work with undirected DOT graphs",
+            )),
+            dot_structures::Graph::DiGraph { stmts, .. } => {
+                let mut graph = MockPerspectiveGraph {
+                    graph_map: BTreeMap::new(),
+                };
+
+                let mut hashes = Vec::<Hash>::new();
+                let mut parents: BTreeMap<Hash, Vec<Hash>> = BTreeMap::new();
+
+                for s in stmts.iter() {
+                    match s {
+                        dot_structures::Stmt::Node(node) => hashes.push(node_id_hash(&node.id.0)),
+                        dot_structures::Stmt::Edge(edge) => {
+                            if let Some(e) = unwrap_edge(edge.clone()) {
+                                let id_0 = e.0 .0;
+                                let id_1 = e.1 .0;
+                                let child = node_id_hash(&id_0);
+                                let parent = node_id_hash(&id_1);
+                                //println!("Edge: {} -> {}", id_0, id_1);
+                                //println!("Edge: {} -> {}", child, parent);
+                                match parents.remove(&child) {
+                                    None => parents.insert(child, vec![parent]),
+                                    Some(mut prev) => {
+                                        prev.push(parent);
+                                        parents.insert(child, prev)
+                                    }
+                                };
+                            }
+                        }
+                        _ => {}
+                    }
+                }
+
+                for ref_hash in hashes.iter() {
+                    //Create a mock diff
+                    let diff = PerspectiveDiff {
+                        additions: vec![create_link_expression(
+                            &ref_hash.to_string(),
+                            &ref_hash.to_string(),
+                        )],
+                        removals: vec![],
+                    };
+
+                    //Create a mock hash for the fake diff
+                    let ref_sb = SerializedBytes::try_from(diff.clone())?;
+                    let mut hasher = Sha256::new();
+                    hasher.update(ref_sb.bytes());
+                    let mut result = hasher.finalize().as_slice().to_owned();
+                    result.append(&mut vec![0xdb, 0xdb, 0xdb, 0xdb]);
+                    let diff_hash = ActionHash::from_raw_36(result);
+
+                    //Create the diff reference
+                    let diff_ref = PerspectiveDiffEntryReference::new(
+                        diff_hash.clone(),
+                        parents.get(ref_hash).as_ref().cloned().cloned(),
+                    );
+                    //Insert the diff reference into the map
+                    let diff_ref_sb = diff_ref
+                        .try_into()
+                        .expect("Could not create serialized bytes for mocked_diff");
+                    graph.graph_map.insert(ref_hash.clone(), diff_ref_sb);
+
+                    //Insert the diff into the map
+                    graph.graph_map.insert(diff_hash, ref_sb);
+                }
+
+                Ok(graph)
+            }
+        }
+    }
+}
+
+lazy_static! {
+    pub static ref GLOBAL_MOCKED_GRAPH: Mutex<MockPerspectiveGraph> =
+        Mutex::new(MockPerspectiveGraph::new(GraphInput {
+            nodes: 1,
+            associations: vec![]
+        }));
+    pub static ref CURRENT_REVISION: Mutex<Option<Hash>> = Mutex::new(None);
+    pub static ref LATEST_REVISION: Mutex<Option<Hash>> = Mutex::new(None);
+}
+
+#[test]
+fn can_create_graph() {
+    let test = MockPerspectiveGraph::new(GraphInput {
+        nodes: 6,
+        associations: vec![
+            Associations {
+                node_source: 1,
+                node_targets: vec![0],
+            },
+            Associations {
+                node_source: 2,
+                node_targets: vec![0],
+            },
+            Associations {
+                node_source: 3,
+                node_targets: vec![1],
+            },
+            Associations {
+                node_source: 4,
+                node_targets: vec![2],
+            },
+            Associations {
+                node_source: 5,
+                node_targets: vec![3, 4],
+            },
+        ],
+    });
+    assert_eq!(test.graph_map.keys().len(), 6);
+    println!("Got graph: {:#?}", test.graph_map);
+}
+
+#[test]
+fn can_create_graph_from_dot() {
+    let dot = "digraph {
+        0 [ label = \"0\" ]
+        1 [ label = \"1\" ]
+        2 [ label = \"2\" ]
+        3 [ label = \"3\" ]
+        4 [ label = \"4\" ]
+        5 [ label = \"5\" ]
+        6 [ label = \"6\" ]
+        7 [ label = \"7\" ]
+        8 [ label = \"8\" ]
+        9 [ label = \"9\" ]
+        10 [ label = \"10\" ]
+        11 [ label = \"11\" ]
+        12 [ label = \"12\" ]
+        1 -> 0 [ label = \"()\" ]
+        2 -> 1 [ label = \"()\" ]
+        3 -> 2 [ label = \"()\" ]
+        4 -> 3 [ label = \"()\" ]
+        5 -> 4 [ label = \"()\" ]
+        6 -> 5 [ label = \"()\" ]
+        7 -> 1 [ label = \"()\" ]
+        8 -> 7 [ label = \"()\" ]
+        9 -> 8 [ label = \"()\" ]
+        10 -> 9 [ label = \"()\" ]
+        11 -> 10 [ label = \"()\" ]
+        12 -> 11 [ label = \"()\" ]
+        12 -> 10 [ label = \"()\" ]
+    }";
+
+    let graph = MockPerspectiveGraph::from_dot(dot).expect("from_dot not to return error");
+    //26 since there is a diffref & diff for each node
+    assert_eq!(graph.graph_map.keys().len(), 26);
+
+    let node_12 = node_id_hash(&dot_structures::Id::Plain(String::from("12")));
+    let node_11 = node_id_hash(&dot_structures::Id::Plain(String::from("11")));
+    let node_10 = node_id_hash(&dot_structures::Id::Plain(String::from("10")));
+
+    let diff_12 = graph.graph_map.get(&node_12).unwrap();
+    let diff_12 = PerspectiveDiffEntryReference::try_from(diff_12.to_owned()).unwrap();
+    assert_eq!(diff_12.parents, Some(vec![node_11, node_10]));
+}
+
+#[test]
+fn example_test() {
+    use crate::link_adapter::workspace::Workspace;
+
+    fn update() {
+        let mut graph = GLOBAL_MOCKED_GRAPH.lock().unwrap();
+        *graph = MockPerspectiveGraph::new(GraphInput {
+            nodes: 6,
+            associations: vec![
+                Associations {
+                    node_source: 1,
+                    node_targets: vec![0],
+                },
+                Associations {
+                    node_source: 2,
+                    node_targets: vec![0],
+                },
+                Associations {
+                    node_source: 3,
+                    node_targets: vec![1],
+                },
+                Associations {
+                    node_source: 4,
+                    node_targets: vec![2],
+                },
+                Associations {
+                    node_source: 5,
+                    node_targets: vec![3, 4],
+                },
+            ],
+        });
+    }
+    update();
+
+    let mut workspace = Workspace::new();
+    let res = workspace.collect_until_common_ancestor::<MockPerspectiveGraph>(
+        ActionHash::from_raw_36(vec![5; 36]),
+        ActionHash::from_raw_36(vec![4; 36]),
+    );
+    println!("Got result: {:#?}", res);
+}
+
+#[test]
+fn can_get_and_create_mocked_holochain_objects() {
+    fn update() {
+        let mut graph = GLOBAL_MOCKED_GRAPH.lock().unwrap();
+        let dot = "digraph {
+            0 [ label = \"0\" ]
+            1 [ label = \"1\" ]
+            2 [ label = \"2\" ]
+            3 [ label = \"3\" ]
+            4 [ label = \"4\" ]
+            5 [ label = \"5\" ]
+            6 [ label = \"6\" ]
+            7 [ label = \"7\" ]
+            8 [ label = \"8\" ]
+            9 [ label = \"9\" ]
+            10 [ label = \"10\" ]
+            11 [ label = \"11\" ]
+            12 [ label = \"12\" ]
+            1 -> 0 [ label = \"()\" ]
+            2 -> 1 [ label = \"()\" ]
+            3 -> 2 [ label = \"()\" ]
+            4 -> 3 [ label = \"()\" ]
+            5 -> 4 [ label = \"()\" ]
+            6 -> 5 [ label = \"()\" ]
+            7 -> 1 [ label = \"()\" ]
+            8 -> 7 [ label = \"()\" ]
+            9 -> 8 [ label = \"()\" ]
+            10 -> 9 [ label = \"()\" ]
+            11 -> 10 [ label = \"()\" ]
+            12 -> 11 [ label = \"()\" ]
+            12 -> 10 [ label = \"()\" ]
+        }";
+        *graph = MockPerspectiveGraph::from_dot(dot).expect("Could not create graph");
+    }
+    update();
+    let diff_ref = MockPerspectiveGraph::get::<PerspectiveDiffEntryReference>(node_id_hash(
+        &dot_structures::Id::Plain(String::from("1")),
+    ));
+    assert!(diff_ref.is_ok());
+
+    use perspective_diff_sync_integrity::{
+        EntryTypes, PerspectiveDiff, PerspectiveDiffEntryReference,
+    };
+    let commit = MockPerspectiveGraph::create_entry(EntryTypes::PerspectiveDiff(PerspectiveDiff {
+        additions: vec![],
+        removals: vec![],
+    }));
+    assert!(commit.is_ok());
+
+    let get_commit = MockPerspectiveGraph::get::<PerspectiveDiff>(commit.unwrap());
+    assert!(get_commit.is_ok());
+}
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/telepresence/mod.rs b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/telepresence/mod.rs
new file mode 100644
index 000000000..9da170613
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/telepresence/mod.rs
@@ -0,0 +1,2 @@
+pub(crate) mod signal;
+pub(crate) mod status;
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/telepresence/signal.rs b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/telepresence/signal.rs
new file mode 100644
index 000000000..3fa833b36
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/telepresence/signal.rs
@@ -0,0 +1,30 @@
+use hdk::prelude::*;
+use perspective_diff_sync_integrity::PerspectiveExpression;
+
+use super::status::get_dids_agent_key;
+use crate::retriever::holochain::get_active_agents;
+use crate::{errors::SocialContextResult, inputs::SignalData};
+
+pub fn send_signal(signal_data: SignalData) -> SocialContextResult<PerspectiveExpression> {
+    let agent = get_dids_agent_key(signal_data.remote_agent_did.clone())?;
+    // debug!(
+    //     "PerspectiveDiffSync.send_signal() to DID: {:?} / HC: {:?}",
+    //     signal_data.remote_agent_did, agent
+    // );
+    match agent {
+        Some(agent) => remote_signal(signal_data.payload.clone().get_sb()?, vec![agent])?,
+        None => {
+            debug!("PerspectiveDiffSync.send_signal(): Could not send signal since we could not get the agents pub key from did");
+        }
+    }
+    Ok(signal_data.payload)
+}
+
+pub fn send_broadcast(data: PerspectiveExpression) -> SocialContextResult<PerspectiveExpression> {
+    let active_agents = get_active_agents()?;
+
+    //debug!("PerspectiveDiffSync.send_broadcast() to: {:?}", active_agents);
+    remote_signal(data.clone().get_sb()?, active_agents)?;
+
+    Ok(data)
+}
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/telepresence/status.rs b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/telepresence/status.rs
new file mode 100644
index 000000000..eba6ab08b
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/telepresence/status.rs
@@ -0,0 +1,232 @@
+use hdk::prelude::*;
+
+use perspective_diff_sync_integrity::{
+    Anchor, EntryTypes, LinkTypes, OnlineAgent, OnlineAgentAndAction, PerspectiveExpression,
+};
+
+use crate::errors::{SocialContextError, SocialContextResult};
+use crate::retriever::holochain::get_active_agents;
+
+pub fn set_online_status(status: PerspectiveExpression) -> SocialContextResult<()> {
+    let entry = EntryTypes::PrivateOnlineStatus(status);
+    create_entry(&entry)?;
+    Ok(())
+}
+
+pub fn get_online_status() -> SocialContextResult<OnlineAgentAndAction> {
+    //Try and get my did
+    let my_did = get_my_did()?.ok_or(SocialContextError::NoDidFound)?;
+
+    //Try and get my online status
+    let query = query(
+        QueryFilter::new()
+            .entry_type(EntryType::App(AppEntryDef {
+                entry_index: 7.into(),
+                zome_index: 0.into(),
+                visibility: EntryVisibility::Private,
+            }))
+            .include_entries(true)
+            .descending(),
+    );
+
+    let status = match query {
+        Ok(records) => {
+            if records.len() == 0 {
+                None
+            } else {
+                let record = records[0].clone();
+                let entry = record
+                    .entry
+                    .to_app_option::<PerspectiveExpression>()
+                    .unwrap()
+                    .unwrap();
+                Some((entry, record.action_address().to_owned()))
+            }
+        }
+        Err(e) => {
+            debug!(
+                "PerspectiveDiffSync.current_revision(): Error when getting current revision: {:?}",
+                e
+            );
+            None
+        }
+    };
+
+    let online_status = OnlineAgentAndAction {
+        did: my_did,
+        status: status.clone().map(|status| status.0),
+        status_action: status.map(|status| status.1),
+    };
+    Ok(online_status)
+}
+
+pub fn create_did_pub_key_link(did: String) -> SocialContextResult<()> {
+    debug!("PerspectiveDiffSync.create_did_pub_key_link({:?})", did);
+    let agent_key = agent_info()?.agent_latest_pubkey;
+    debug!("PerspectiveDiffSync.create_did_pub_key_link() agent_key: {:?}", agent_key);
+    //let input = GetLinksInputBuilder::try_new(agent_key.clone(), LinkTypes::DidLink).unwrap().build();
+    let did_links = get_links(agent_key.clone(), LinkTypes::DidLink, None)?;
+    debug!("PerspectiveDiffSync.create_did_pub_key_link() did_links: {:?}", did_links);
+    if did_links.len() == 0 {
+
+        let entry = EntryTypes::Anchor(Anchor(did));
+        let _did_entry = create_entry(&entry)?;
+        let did_entry_hash = hash_entry(entry)?;
+        create_link(
+            agent_key.clone(),
+            did_entry_hash.clone(),
+            LinkTypes::DidLink,
+            LinkTag::new("did_link"),
+        )?;
+        create_link(
+            did_entry_hash,
+            agent_key,
+            LinkTypes::DidLink,
+            LinkTag::new("did_link"),
+        )?;
+    }
+    Ok(())
+}
+
+pub fn get_my_did() -> SocialContextResult<Option<String>> {
+    // let input = GetLinksInputBuilder::try_new(
+    //     agent_info()?.agent_latest_pubkey,
+    //     LinkTypes::DidLink
+    // )
+    // .unwrap()
+    // .build();
+    let mut did_links = get_links(agent_info()?.agent_latest_pubkey, LinkTypes::DidLink, None)?;
+    if did_links.len() > 0 {
+        let did = get(
+            did_links
+                .remove(0)
+                .target
+                .into_entry_hash()
+                .expect("Could not get entry_hash"),
+            GetOptions::latest(),
+        )?
+        .ok_or(SocialContextError::InternalError(
+            "Could not find did entry for given did entry reference",
+        ))?
+        .entry()
+        .to_app_option::<Anchor>()?
+        .ok_or(SocialContextError::InternalError(
+            "Expected element to contain app entry data",
+        ))?;
+        Ok(Some(did.0))
+    } else {
+        Ok(None)
+    }
+}
+
+pub fn get_dids_agent_key(did: String) -> SocialContextResult<Option<AgentPubKey>> {
+    let did_entry = Anchor(did);
+    let did_entry_hash = hash_entry(EntryTypes::Anchor(did_entry.clone()))?;
+    // let input = GetLinksInputBuilder::try_new(
+    //     did_entry_hash,
+    //     LinkTypes::DidLink
+    // )
+    // .unwrap()
+    // .build();
+    let did_links = get_links(did_entry_hash, LinkTypes::DidLink, None)?;
+    debug!("PerspectiveDiffSync.get_dids_agent_key() did_links: {:?}", did_links);
+    if did_links.len() > 0 {
+        let entry: EntryHash = did_links[0].target.clone().try_into().unwrap();
+        Ok(Some(AgentPubKey::from(entry)))
+    } else {
+        Ok(None)
+    }
+}
+
+pub fn get_agents_did_key(agent: AgentPubKey) -> SocialContextResult<Option<String>> {
+    // let input = GetLinksInputBuilder::try_new(
+    //     agent,
+    //     LinkTypes::DidLink
+    // )
+    // .unwrap()
+    // .build();
+    let mut did_links = get_links(agent, LinkTypes::DidLink, None)?;
+    if did_links.len() > 0 {
+        let did = get(
+            did_links
+                .remove(0)
+                .target
+                .into_entry_hash()
+                .expect("Could not get entry_hash"),
+            GetOptions::latest(),
+        )?
+        .ok_or(SocialContextError::InternalError(
+            "Could not find did entry for given did entry reference",
+        ))?
+        .entry()
+        .to_app_option::<Anchor>()?
+        .ok_or(SocialContextError::InternalError(
+            "Expected element to contain app entry data",
+        ))?;
+        Ok(Some(did.0))
+    } else {
+        Ok(None)
+    }
+}
+
+pub fn get_others() -> SocialContextResult<Vec<String>> {
+    let active_agents = get_active_agents()?;
+    let mut others = Vec::new();
+    for active_agent in active_agents {
+        let did_key = get_agents_did_key(active_agent)?;
+        if did_key.is_some() {
+            others.push(did_key.unwrap());
+        }
+    }
+    Ok(others)
+}
+
+pub fn get_online_agents() -> SocialContextResult<Vec<OnlineAgent>> {
+    let active_agents = get_active_agents()?;
+    let mut online_agents = Vec::new();
+    for active_agent in active_agents {
+        let online_agent_status = get_agents_status(active_agent);
+        if online_agent_status.is_some() {
+            online_agents.push(online_agent_status.unwrap());
+        }
+    }
+    Ok(online_agents)
+}
+
+pub fn get_agents_status(agent: AgentPubKey) -> Option<OnlineAgent> {
+    let online_agent_status = call_remote(
+        agent.clone(),
+        "perspective_diff_sync",
+        "get_online_status".into(),
+        None,
+        {},
+    );
+    if online_agent_status.is_ok() {
+        let online_agent_response = online_agent_status.unwrap();
+        match online_agent_response {
+            ZomeCallResponse::Ok(online_agent) => {
+                let online_agent = online_agent
+                    .decode::<OnlineAgentAndAction>()
+                    .expect("Could not decode online agent");
+                Some(OnlineAgent {
+                    did: online_agent.did,
+                    status: online_agent.status,
+                })
+            }
+            ZomeCallResponse::Unauthorized(..) => {
+                debug!("Unauthorized to call agent {}", agent.clone());
+                None
+            }
+            ZomeCallResponse::NetworkError(..) => {
+                debug!("Agent {} is offline", agent.clone());
+                None
+            }
+            ZomeCallResponse::CountersigningSession(_) => {
+                debug!("Agent {} had countersigning session error", agent);
+                None
+            }
+        }
+    } else {
+        None
+    }
+}
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/utils.rs b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/utils.rs
new file mode 100644
index 000000000..6f5ccf2c5
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync/src/utils.rs
@@ -0,0 +1,46 @@
+use chrono::{DateTime, NaiveDateTime, Utc};
+use hdk::prelude::*;
+use std::hash::Hash;
+
+use crate::errors::SocialContextResult;
+use perspective_diff_sync_integrity::{ExpressionProof, LinkExpression, Triple};
+
+pub fn get_now() -> SocialContextResult<DateTime<Utc>> {
+    match sys_time() {
+        Ok(time) => {
+            let now = time.as_seconds_and_nanos();
+            Ok(DateTime::<Utc>::from_utc(
+                NaiveDateTime::from_timestamp(now.0, now.1),
+                Utc,
+            ))
+        }
+        Err(_err) => Ok(Utc::now()),
+    }
+}
+
+pub fn dedup<T: Eq + Hash + Clone>(vs: &Vec<T>) -> Vec<T> {
+    let hs = vs.iter().cloned().collect::<HashSet<T>>();
+
+    hs.into_iter().collect()
+}
+
+pub(crate) fn err(reason: &str) -> WasmError {
+    wasm_error!(WasmErrorInner::Host(String::from(reason)))
+}
+
+#[allow(dead_code)]
+pub fn create_link_expression(source: &str, target: &str) -> LinkExpression {
+    LinkExpression {
+        author: String::from("Test author"),
+        data: Triple {
+            source: Some(String::from(source)),
+            predicate: None,
+            target: Some(String::from(target)),
+        },
+        timestamp: DateTime::<Utc>::from_utc(NaiveDateTime::from_timestamp(0, 0), Utc),
+        proof: ExpressionProof {
+            signature: String::from("sig"),
+            key: String::from("key"),
+        },
+    }
+}
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync_integrity/Cargo.toml b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync_integrity/Cargo.toml
new file mode 100644
index 000000000..c40215be7
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync_integrity/Cargo.toml
@@ -0,0 +1,18 @@
+[package]
+authors = ["josh@junto.foundation"]
+edition = "2018"
+name = "perspective_diff_sync_integrity"
+version = "0.0.1"
+
+[lib]
+crate-type = ["cdylib", "rlib"]
+name = "perspective_diff_sync_integrity"
+
+[dependencies]
+derive_more = "0"
+serde = "1"
+chrono = { version = "0.4.22", default-features = false, features = ["clock", "std", "oldtime", "serde"] }
+
+holo_hash = "0.2.2"
+hdi = "0.3.2"
+hdk = "0.2.2"
\ No newline at end of file
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync_integrity/src/impls.rs b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync_integrity/src/impls.rs
new file mode 100644
index 000000000..f6b11084e
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync_integrity/src/impls.rs
@@ -0,0 +1,68 @@
+use std::cmp::Ordering;
+
+use hdk::prelude::*;
+
+use crate::{
+    Anchor, HashBroadcast, OnlineAgent, PerspectiveDiff, PerspectiveDiffEntryReference,
+    PerspectiveExpression,
+};
+
+impl PerspectiveDiff {
+    pub fn get_sb(self) -> ExternResult<SerializedBytes> {
+        self.try_into()
+            .map_err(|error| wasm_error!(WasmErrorInner::Host(String::from(error))))
+    }
+}
+
+impl Anchor {
+    pub fn get_sb(self) -> ExternResult<SerializedBytes> {
+        self.try_into()
+            .map_err(|error| wasm_error!(WasmErrorInner::Host(String::from(error))))
+    }
+}
+
+impl PerspectiveExpression {
+    pub fn get_sb(self) -> ExternResult<SerializedBytes> {
+        self.try_into()
+            .map_err(|error| wasm_error!(WasmErrorInner::Host(String::from(error))))
+    }
+}
+
+impl OnlineAgent {
+    pub fn get_sb(self) -> ExternResult<SerializedBytes> {
+        self.try_into()
+            .map_err(|error| wasm_error!(WasmErrorInner::Host(String::from(error))))
+    }
+}
+
+impl HashBroadcast {
+    pub fn get_sb(self) -> ExternResult<SerializedBytes> {
+        self.try_into()
+            .map_err(|error| wasm_error!(WasmErrorInner::Host(String::from(error))))
+    }
+}
+
+impl PerspectiveDiffEntryReference {
+    pub fn new(
+        diff: HoloHash<holo_hash::hash_type::Action>,
+        parents: Option<Vec<HoloHash<holo_hash::hash_type::Action>>>,
+    ) -> Self {
+        Self {
+            diff: diff,
+            parents: parents,
+            diffs_since_snapshot: 0,
+        }
+    }
+}
+
+impl PartialOrd for PerspectiveDiffEntryReference {
+    fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
+        self.diff.partial_cmp(&other.diff)
+    }
+}
+
+impl Ord for PerspectiveDiffEntryReference {
+    fn cmp(&self, other: &Self) -> Ordering {
+        self.diff.cmp(&other.diff)
+    }
+}
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync_integrity/src/lib.rs b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync_integrity/src/lib.rs
new file mode 100644
index 000000000..f565e84cd
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/perspective_diff_sync_integrity/src/lib.rs
@@ -0,0 +1,169 @@
+use chrono::{DateTime, Utc};
+use hdi::prelude::*;
+
+pub mod impls;
+
+#[derive(
+    Serialize, Deserialize, Clone, SerializedBytes, Debug, PartialEq, Eq, Hash, Ord, PartialOrd,
+)]
+pub struct ExpressionProof {
+    pub signature: String,
+    pub key: String,
+}
+
+#[derive(
+    Serialize, Deserialize, Clone, SerializedBytes, Debug, PartialEq, Eq, Hash, Ord, PartialOrd,
+)]
+pub struct Triple {
+    pub source: Option<String>,
+    pub target: Option<String>,
+    pub predicate: Option<String>,
+}
+
+#[derive(Clone, Deserialize, Serialize, Debug, PartialEq, Eq, Hash, Ord, PartialOrd)]
+pub struct LinkExpression {
+    pub author: String,
+    pub data: Triple,
+    pub timestamp: DateTime<Utc>,
+    pub proof: ExpressionProof,
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize, SerializedBytes, Default)]
+pub struct PerspectiveDiff {
+    pub additions: Vec<LinkExpression>,
+    pub removals: Vec<LinkExpression>,
+}
+
+///The reference that is sent to other agents, denotes the position in the DAG as well as the data at that position
+#[derive(Clone, Debug, Serialize, Deserialize, SerializedBytes)]
+pub struct HashBroadcast {
+    pub reference_hash: HoloHash<holo_hash::hash_type::Action>,
+    pub reference: PerspectiveDiffEntryReference,
+    pub diff: PerspectiveDiff,
+    pub broadcast_author: String,
+}
+
+impl PerspectiveDiff {
+    pub fn new() -> Self {
+        Self {
+            additions: Vec::new(),
+            removals: Vec::new(),
+        }
+    }
+    pub fn total_diff_number(&self) -> usize {
+        self.additions.len() + self.removals.len()
+    }
+}
+
+app_entry!(PerspectiveDiff);
+
+#[derive(Clone, Debug, Serialize, Deserialize, SerializedBytes)]
+pub struct Snapshot {
+    pub diff_chunks: Vec<HoloHash<holo_hash::hash_type::Action>>,
+    pub included_diffs: Vec<HoloHash<holo_hash::hash_type::Action>>,
+}
+
+app_entry!(Snapshot);
+
+#[derive(Clone, Debug, Serialize, Deserialize, SerializedBytes, PartialEq, Eq, Hash)]
+pub struct PerspectiveDiffEntryReference {
+    pub diff: HoloHash<holo_hash::hash_type::Action>,
+    pub parents: Option<Vec<HoloHash<holo_hash::hash_type::Action>>>,
+    pub diffs_since_snapshot: usize,
+}
+
+app_entry!(PerspectiveDiffEntryReference);
+
+#[derive(Clone, Serialize, Deserialize, Debug)]
+pub struct Perspective {
+    pub links: Vec<LinkExpression>,
+}
+
+//TODO: this can likely be removed and instead just reference the PerspectiveDiffEntry/MergeEntry directly?
+#[derive(Clone, Debug, Serialize, Deserialize, SerializedBytes)]
+pub struct HashReference {
+    pub hash: HoloHash<holo_hash::hash_type::Action>,
+    pub timestamp: DateTime<Utc>,
+}
+
+app_entry!(HashReference);
+
+#[derive(Clone, Debug, Serialize, Deserialize, SerializedBytes)]
+pub struct LocalHashReference {
+    pub hash: HoloHash<holo_hash::hash_type::Action>,
+    pub timestamp: DateTime<Utc>,
+}
+
+app_entry!(LocalHashReference);
+
+#[derive(Clone, Debug, Serialize, Deserialize, SerializedBytes)]
+pub struct LocalTimestampReference {
+    pub timestamp_reference: DateTime<Utc>,
+}
+
+app_entry!(LocalTimestampReference);
+
+#[derive(Clone, Debug, Serialize, Deserialize, SerializedBytes)]
+pub struct Anchor(pub String);
+
+app_entry!(Anchor);
+
+#[derive(Clone, Debug, Serialize, Deserialize, SerializedBytes)]
+pub struct PerspectiveExpression {
+    pub author: String,
+    pub data: Perspective,
+    pub timestamp: DateTime<Utc>,
+    pub proof: ExpressionProof,
+}
+
+app_entry!(PerspectiveExpression);
+
+#[derive(Clone, Debug, Serialize, Deserialize, SerializedBytes)]
+pub struct OnlineAgent {
+    pub did: String,
+    pub status: Option<PerspectiveExpression>,
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize, SerializedBytes)]
+pub struct OnlineAgentAndAction {
+    pub did: String,
+    pub status: Option<PerspectiveExpression>,
+    pub status_action: Option<ActionHash>,
+}
+
+#[derive(Debug, Serialize, Deserialize, SerializedBytes)]
+pub struct PullResult {
+    pub diff: PerspectiveDiff,
+    pub current_revision: Option<HoloHash<holo_hash::hash_type::Action>>,
+}
+
+#[hdk_entry_defs]
+#[unit_enum(UnitEntryTypes)]
+pub enum EntryTypes {
+    #[entry_def(visibility = "public")]
+    PerspectiveDiff(PerspectiveDiff),
+    #[entry_def(visibility = "public")]
+    Snapshot(Snapshot),
+    #[entry_def(visibility = "public")]
+    HashReference(HashReference),
+    #[entry_def(visibility = "public")]
+    PerspectiveDiffEntryReference(PerspectiveDiffEntryReference),
+    #[entry_def(visibility = "private")]
+    LocalHashReference(LocalHashReference),
+    #[entry_def(visibility = "private")]
+    LocalTimestampReference(LocalTimestampReference),
+    #[entry_def(visibility = "public")]
+    Anchor(Anchor),
+    #[entry_def(visibility = "private")]
+    PrivateOnlineStatus(PerspectiveExpression),
+}
+
+#[hdk_link_types]
+pub enum LinkTypes {
+    Snapshot,
+    ActiveAgent,
+    HashRef,
+    TimePath,
+    Index,
+    DidLink,
+}
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/common.ts b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/common.ts
new file mode 100644
index 000000000..d93421ff6
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/common.ts
@@ -0,0 +1,6 @@
+import path from "path";
+import {Dna} from "@holochain/tryorama";
+
+const dnas: Dna[] = [{ source: {path: path.join("../../workdir/perspective-diff-sync.dna")} }];
+
+export { dnas };
\ No newline at end of file
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/download-hc-binaries.sh b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/download-hc-binaries.sh
new file mode 100755
index 000000000..e78e813ec
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/download-hc-binaries.sh
@@ -0,0 +1,14 @@
+#!/bin/bash
+[ ! -d "./temp/binary" ] && mkdir -p "./temp/binary"
+
+if [ ! -f "./hc" ]; then
+    wget https://github.com/perspect3vism/ad4m/releases/download/binary-deps-0.1.0/hc-linux-0.1.0
+    mv hc-linux-0.1.0 ./hc
+    chmod +x ./hc
+fi
+
+if [ ! -f "./holochain" ]; then
+    wget https://github.com/perspect3vism/ad4m/releases/download/binary-deps-0.1.0/holochain-linux-0.1.0
+    mv holochain-linux-0.1.0 ./holochain
+    chmod +x ./holochain
+fi
\ No newline at end of file
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/index.ts b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/index.ts
new file mode 100644
index 000000000..1544f6e95
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/index.ts
@@ -0,0 +1,49 @@
+import { render, renderMerges } from "./render";
+import { unSyncFetch, mergeFetch, mergeFetchDeep } from "./pull";
+import { testRevisionUpdates } from "./revisions";
+import { stressTest } from "./stress"
+import { signals } from "./signals";
+import { testTelepresence } from "./telepresence";
+
+import test from "tape-promise/tape.js";
+
+test("unsynced fetch", async (t) => {
+    await unSyncFetch(t);
+})
+
+test("merge fetch", async (t) => {
+    await mergeFetch(t);
+})
+
+test("merge fetch deep", async (t) => {
+    await mergeFetchDeep(t);
+})
+
+//test("stress", async (t) => {
+//    await stressTest(t);
+//})
+
+
+//test("complex merge", async (t) => {
+//    await complexMerge(t);
+//})
+
+test("test revision updates", async (t) => {
+    await testRevisionUpdates(t);
+})
+
+test("render", async (t) => {
+    await render(t)
+})
+
+test("render merges", async (t) => {
+    await renderMerges(t)
+})
+
+test("signals", async (t) => {
+    await signals(t)
+})
+
+test("telepresence", async (t) => {
+    await testTelepresence(t)
+})
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/package.json b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/package.json
new file mode 100644
index 000000000..8c0170b0d
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/package.json
@@ -0,0 +1,40 @@
+{
+  "name": "perspective-diff-sync-tests",
+  "version": "0.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "PATH=$PATH:$(pwd) TRYORAMA_LOG_LEVEL=debug WASM_LOG=debug,wasmer_compiler_cranelift=error,holochain::conductor::manager=warn,holochain::core::workflow::publish_dht_ops_workflow::publish_query=warn,publish_dht_ops_workflow=error,kitsune_p2p_types::metrics=error,kitsune_p2p::gossip::sharded_gossip=error,wasm_trace=debug,app_validation_workflow=error RUST_BACKTRACE=1 node --loader ts-node/esm --experimental-specifier-resolution=node index.ts",
+    "build-test": "cd ../../ && CARGO_TARGET_DIR=target cargo build --release --target wasm32-unknown-unknown --features test && hc dna pack workdir && cd zomes/tests && npm test",
+    "build": "cd ../../ && CARGO_TARGET_DIR=target cargo build --release --target wasm32-unknown-unknown --features test && hc dna pack workdir && cd zomes/tests",
+    "build-ci": "cd ../../ && CARGO_TARGET_DIR=target cargo build --release --target wasm32-unknown-unknown --features test && ./zomes/tests/hc dna pack workdir && cd zomes/tests",
+    "test-pull": "PATH=$PATH:$(pwd) TRYORAMA_LOG_LEVEL=debug WASM_LOG=debug,wasmer_compiler_cranelift=error,holochain::conductor::manager=warn,holochain::core::workflow::publish_dht_ops_workflow::publish_query=warn,publish_dht_ops_workflow=error,kitsune_p2p_types::metrics=error,kitsune_p2p::gossip::sharded_gossip=error,wasm_trace=debug,app_validation_workflow=error RUST_BACKTRACE=1 node --loader ts-node/esm --experimental-specifier-resolution=node pull.ts",
+    "test-render": "PATH=$PATH:$(pwd) TRYORAMA_LOG_LEVEL=debug WASM_LOG=debug,wasmer_compiler_cranelift=error,holochain::conductor::manager=warn,holochain::core::workflow::publish_dht_ops_workflow::publish_query=warn,publish_dht_ops_workflow=error,kitsune_p2p_types::metrics=error,kitsune_p2p::gossip::sharded_gossip=error,wasm_trace=debug,app_validation_workflow=error RUST_BACKTRACE=1 node --loader ts-node/esm --experimental-specifier-resolution=node render.ts",
+    "test-revisions": "PATH=$PATH:$(pwd) TRYORAMA_LOG_LEVEL=debug WASM_LOG=debug,wasmer_compiler_cranelift=error,holochain::conductor::manager=warn,holochain::core::workflow::publish_dht_ops_workflow::publish_query=warn,publish_dht_ops_workflow=error,kitsune_p2p_types::metrics=error,kitsune_p2p::gossip::sharded_gossip=error,wasm_trace=debug,app_validation_workflow=error RUST_BACKTRACE=1 node --loader ts-node/esm --experimental-specifier-resolution=node revisions.ts",
+    "test-signals": "PATH=$PATH:$(pwd) TRYORAMA_LOG_LEVEL=debug WASM_LOG=debug,wasmer_compiler_cranelift=error,holochain::conductor::manager=warn,holochain::core::workflow::publish_dht_ops_workflow::publish_query=warn,publish_dht_ops_workflow=error,kitsune_p2p_types::metrics=error,kitsune_p2p::gossip::sharded_gossip=error,wasm_trace=debug,app_validation_workflow=error RUST_BACKTRACE=1 node --loader ts-node/esm --experimental-specifier-resolution=node signals.ts",
+    "test-stress": "PATH=$PATH:$(pwd) TRYORAMA_LOG_LEVEL=debug WASM_LOG=debug,wasmer_compiler_cranelift=error,holochain::conductor::manager=warn,holochain::core::workflow::publish_dht_ops_workflow::publish_query=warn,publish_dht_ops_workflow=error,kitsune_p2p_types::metrics=error,kitsune_p2p::gossip::sharded_gossip=error,wasm_trace=debug,app_validation_workflow=error RUST_BACKTRACE=1 node --loader ts-node/esm --experimental-specifier-resolution=node stress.ts",
+    "test-telepresence": "PATH=$PATH:$(pwd) TRYORAMA_LOG_LEVEL=debug WASM_LOG=debug,wasmer_compiler_cranelift=error,holochain::conductor::manager=warn,holochain::core::workflow::publish_dht_ops_workflow::publish_query=warn,publish_dht_ops_workflow=error,kitsune_p2p_types::metrics=error,kitsune_p2p::gossip::sharded_gossip=error,wasm_trace=debug,app_validation_workflow=error RUST_BACKTRACE=1 node --loader ts-node/esm --experimental-specifier-resolution=node telepresence.ts"
+  },
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "@holochain/client": "0.16.1",
+    "@holochain/tryorama": "0.15.0",
+    "@perspect3vism/ad4m": "^0.2.12",
+    "@types/lodash": "^4.14.158",
+    "@types/node": "^18.0.0",
+    "blake2b": "^2.1.3",
+    "divide-bigint": "^1.0.4",
+    "faker": "5.5.3",
+    "lodash": "^4.17.19",
+    "tape-promise": "^4.0.0",
+    "ts-node": "^10.8.0",
+    "typescript": "^4.2.4"
+  },
+  "devDependencies": {
+    "@types/faker": "^5.5.3",
+    "@types/tape-promise": "^4.0.1",
+    "tape": "^5.5.3"
+  },
+  "type": "module"
+}
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/pull.ts b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/pull.ts
new file mode 100644
index 000000000..8db065701
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/pull.ts
@@ -0,0 +1,273 @@
+import { addAllAgentsToAllConductors, cleanAllConductors } from "@holochain/tryorama";
+import { call, sleep, generate_link_expression, createConductors, create_link_expression} from "./utils";
+import test from "tape-promise/tape.js";
+
+// //@ts-ignore
+// export async function unSyncFetch(t) {
+//     let installs = await createConductors(2);
+//     let aliceHapps = installs[0].agent_happ;
+//     let conductor1 = installs[0].conductor;
+//     let bobHapps = installs[1].agent_happ;
+//     let conductor2 = installs[1].conductor;
+//     await addAllAgentsToAllConductors([conductor1, conductor2]);
+
+//     //Create did/pub key link for alice and bob
+//     await aliceHapps.cells[0].callZome({
+//         zome_name: "perspective_diff_sync",
+//         fn_name: "create_did_pub_key_link",
+//         payload: "did:test:alice"
+//     });
+//     await bobHapps.cells[0].callZome({
+//         zome_name: "perspective_diff_sync",
+//         fn_name: "create_did_pub_key_link",
+//         payload: "did:test:bob"
+//     });
+    
+//     let commit = await aliceHapps.cells[0].callZome({
+//         zome_name: "perspective_diff_sync", 
+//         fn_name: "commit", 
+//         payload: {additions: [generate_link_expression("alice")], removals: []}
+//     });
+//     console.warn("\ncommit", commit);
+
+//     // need to for gossip to have commit be seen by bob
+//     await sleep(5000)
+    
+//     const pull_bob = await bobHapps.cells[0].callZome({
+//         zome_name: "perspective_diff_sync", 
+//         fn_name: "pull",
+//         payload: { hash: commit, is_scribe: false } 
+//     });
+//     //@ts-ignore
+//     t.equal(pull_bob.diff.additions.length, 1);
+    
+//     await conductor1.shutDown();
+//     await conductor2.shutDown();
+//     await cleanAllConductors();
+// };
+
+//@ts-ignore
+export async function mergeFetchDeep(t) {
+    let installs = await createConductors(2);
+    let aliceHapps = installs[0].agent_happ;
+    let aliceConductor = installs[0].conductor;
+    let bobHapps = installs[1].agent_happ;
+    let bobConductor = installs[1].conductor;
+    
+    //Create new commit whilst bob is not connected
+    let create = await create_link_expression(aliceHapps.cells[0], "alice");
+    let create2 = await create_link_expression(aliceHapps.cells[0], "alice");
+    let create3 = await create_link_expression(aliceHapps.cells[0], "alice");
+    await create_link_expression(aliceHapps.cells[0], "alice");
+    await create_link_expression(aliceHapps.cells[0], "alice");
+    await create_link_expression(aliceHapps.cells[0], "alice");
+    await create_link_expression(aliceHapps.cells[0], "alice");
+    
+    //Pull from bob and make sure he does not have the latest state
+    let pull_bob = await bobHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync", 
+        fn_name: "pull"
+    });
+    //@ts-ignore
+    t.isEqual(pull_bob.diff.additions.length, 0);
+    
+    //Bob to commit his data, and update the latest revision, causing a fork
+    let bob_create = await create_link_expression(bobHapps.cells[0], "bob");
+    let bob_create2 = await create_link_expression(bobHapps.cells[0], "bob");
+    let bob_create3 = await create_link_expression(bobHapps.cells[0], "bob");
+    let bob_create4 = await create_link_expression(bobHapps.cells[0], "bob");
+    await create_link_expression(bobHapps.cells[0], "bob");
+    await create_link_expression(bobHapps.cells[0], "bob");
+    await create_link_expression(bobHapps.cells[0], "bob");
+
+    let pull_bob2 = await bobHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync", 
+        fn_name: "pull"
+    });
+    //@ts-ignore
+    t.isEqual(pull_bob2.diff.additions.length, 0);
+    
+    //Connect nodes togther
+    await addAllAgentsToAllConductors([aliceConductor, bobConductor]);
+    //note; running this test on some machines may require more than 200ms wait
+    await sleep(500)
+    
+    //Alice tries to merge
+    let merge_alice = await aliceHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync", 
+        fn_name: "pull"
+    });
+    //@ts-ignore
+    t.isEqual(merge_alice.diff.additions.length, 7);
+    //@ts-ignore
+    t.isEqual(JSON.stringify(merge_alice.additions[0]), JSON.stringify(bob_create.data));
+    
+    //note; running this test on some machines may require more than 200ms wait
+    await sleep(2000)
+    
+    let pull_bob3 = await bobHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync", 
+        fn_name: "pull"
+    });
+    console.warn("bob pull3", pull_bob3);
+    //@ts-ignore
+    t.isEqual(pull_bob3.diff.additions.length, 7);
+    //@ts-ignore
+    console.log(pull_bob3.diff.additions[0].data);
+    //@ts-ignore
+    t.isEqual(JSON.stringify(pull_bob3.diff.additions[0]), JSON.stringify(create.data));
+    //@ts-ignore
+    t.isEqual(JSON.stringify(pull_bob3.diff.additions[1]), JSON.stringify(create2.data));
+
+    //Shutdown alice conductor
+    await aliceConductor.shutDown();
+
+    //Have bob write three links
+    await create_link_expression(bobHapps.cells[0], "bob");
+    await create_link_expression(bobHapps.cells[0], "bob");
+    await create_link_expression(bobHapps.cells[0], "bob");
+
+    //shutdown bobs conductor
+    await bobConductor.shutDown();
+
+    //Have alice write three links
+    await aliceConductor.startUp();
+    await create_link_expression(aliceHapps.cells[0], "alice");
+    await create_link_expression(aliceHapps.cells[0], "alice");
+    await create_link_expression(aliceHapps.cells[0], "alice");
+
+    //start bobs conductor and pull to see if merge happens correctly
+    await bobConductor.startUp();
+    let pull_bob4 = await bobHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync", 
+        fn_name: "pull"
+    });
+    console.warn("bob pull4", pull_bob4);
+    //@ts-ignore
+    t.isEqual(pull_bob4.diff.additions.length, 3);
+    //@ts-ignore
+    console.log(pull_bob4.diff.additions[0].data);
+    //@ts-ignore
+    t.isEqual(JSON.stringify(pull_bob4.additions[0]), JSON.stringify(create.data));
+    //@ts-ignore
+    t.isEqual(JSON.stringify(pull_bob4.additions[1]), JSON.stringify(create2.data));
+
+    await cleanAllConductors();
+}
+
+//@ts-ignore 
+export async function mergeFetch(t) {
+    let installs = await createConductors(2);
+    let aliceHapps = installs[0].agent_happ;
+    let aliceConductor = installs[0].conductor;
+    let bobHapps = installs[1].agent_happ;
+    let bobConductor = installs[1].conductor;
+
+    //Create did/pub key link for alice and bob
+    await aliceHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync",
+        fn_name: "create_did_pub_key_link",
+        payload: "did:test:alice"
+    });
+    await bobHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync",
+        fn_name: "create_did_pub_key_link",
+        payload: "did:test:bob"
+    });
+    
+    //Create new commit whilst bob is not connected
+    let link_data = generate_link_expression("alice");
+    console.log("Alice posting link data", link_data);
+    let commit = await aliceHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync", 
+        fn_name: "commit", 
+        payload: {additions: [link_data], removals: []}
+    });
+    //@ts-ignore
+    console.warn("\ncommit", commit.toString("base64"));
+
+    await sleep(1000)
+
+    let bob_pull_failed = false
+    try{
+        // Pull from bob who is not connected to alice yet
+        // to show that this will fail (because `commit` could not be found)
+        await bobHapps.cells[0].callZome({
+            zome_name: "perspective_diff_sync", 
+            fn_name: "pull",
+            payload: { hash: commit, is_scribe: false }
+        });
+    } catch(e) {
+        bob_pull_failed = true
+    }
+
+    t.assert(bob_pull_failed)
+
+    
+    //Bob to commit his data, and update the latest revision, causing a fork
+    let bob_link_data = generate_link_expression("bob");
+    console.log("Bob posting link data", bob_link_data);
+    let commit_bob = await bobHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync", 
+        fn_name: "commit", 
+        payload: {additions: [bob_link_data], removals: []}
+    });
+    //@ts-ignore
+    console.warn("\ncommit_bob", commit_bob.toString("base64"));
+    
+    //Connect nodes togther
+    await addAllAgentsToAllConductors([aliceConductor, bobConductor]);
+    //note; running this test on some machines may require more than 200ms wait
+    await sleep(1000)
+    
+    //Alice tries to merge
+    let merge_alice = await aliceHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync", 
+        fn_name: "pull",
+        payload: { hash: commit_bob, is_scribe: true }
+    });
+    //@ts-ignore
+    t.isEqual(merge_alice.diff.additions.length, 1);
+    //@ts-ignore
+    t.isEqual(JSON.stringify(merge_alice.diff.additions[0].data), JSON.stringify(bob_link_data.data));
+
+    const alice_merge_commit = await aliceHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync",
+        fn_name: "current_revision",
+    });
+    
+    //note; running this test on some machines may require more than 200ms wait
+    await sleep(2000)
+    
+    let pull_bob3 = await bobHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync", 
+        fn_name: "pull",
+        payload: { hash: alice_merge_commit, is_scribe: false }
+    });
+    console.warn("bob pull3", pull_bob3);
+    //@ts-ignore
+    t.isEqual(pull_bob3.diff.additions.length, 1);
+    //@ts-ignore
+    console.log(pull_bob3.diff.additions[0].data);
+    //@ts-ignore
+    t.isEqual(JSON.stringify(pull_bob3.diff.additions[0].data), JSON.stringify(link_data.data));
+
+    await aliceConductor.shutDown();
+    await bobConductor.shutDown();
+}
+
+
+test("pull", async (t) => {
+    //t.plan(20)
+    try {
+        //await unSyncFetch(t);
+        await mergeFetch(t);
+    } catch(e) {
+        console.error("Pull test failed with error", e);
+        //@ts-ignore
+        t.fail(e)
+    } finally {
+        t.end()
+        process.exit(0)
+    }
+})
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/queue.ts b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/queue.ts
new file mode 100644
index 000000000..005dd13fe
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/queue.ts
@@ -0,0 +1,82 @@
+class Queue<T> {
+  #queue: T[];
+
+  constructor() {
+    this.#queue = [];
+  }
+
+  enqueue(func: T) {
+    this.#queue.push(func);
+  }
+
+  dequeue() {
+    return this.#queue.shift();
+  }
+
+  get size(): number {
+    return this.#queue.length;
+  }
+}
+
+export class AsyncQueue {
+  #queue = new Queue<() => any>();
+  #pendingCount = 0;
+
+  private next() {
+    this.#pendingCount--;
+    this.startAnotherFunc();
+  }
+
+  private startAnotherFunc(): boolean {
+    if (this.#queue.size === 0) {
+      return false;
+    }
+
+    if (this.#pendingCount === 0) {
+      const func = this.#queue.dequeue();
+
+      if (!func) {
+        return false;
+      }
+
+      func();
+
+      return true;
+    }
+
+    return false;
+  }
+
+  async add(func: () => void) {
+    return new Promise((resolve, reject) => {
+      const job = async () => {
+        this.#pendingCount++;
+
+        try {
+          const result = await func();
+          resolve(result);
+        } catch(error) {
+          reject(error);
+        }
+
+        this.next();
+      }
+
+      this.#queue.enqueue(job);
+      this.startAnotherFunc();
+    });
+  }
+
+  async addAll(funcs: Array<() => void>) {
+    return Promise.all(funcs.map(async func => this.add(func)))
+  }
+
+  get pendingCount(): number {
+    return this.#pendingCount;
+  }
+
+  clear() {
+    this.#queue = new Queue<() => any>();
+    this.#pendingCount = 0;
+  }
+}
\ No newline at end of file
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/render.ts b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/render.ts
new file mode 100644
index 000000000..987309c93
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/render.ts
@@ -0,0 +1,270 @@
+import { addAllAgentsToAllConductors, cleanAllConductors } from "@holochain/tryorama";
+import { call, sleep, generate_link_expression, createConductors} from "./utils";
+import test from "tape-promise/tape.js";
+
+//NOTE; these tests are dependant on the SNAPSHOT_INTERVAL in lib.rs being set to 2
+//@ts-ignore
+export async function render(t) {
+    let installs = await createConductors(2);
+    let aliceHapps = installs[0].agent_happ;
+    let conductor1 = installs[0].conductor;
+    let bobHapps = installs[1].agent_happ;
+    let conductor2 = installs[1].conductor;
+    await addAllAgentsToAllConductors([conductor1, conductor2]);
+
+    //Create did/pub key link for alice and bob
+    await aliceHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync",
+        fn_name: "create_did_pub_key_link",
+        payload: "did:test:alice"
+    });
+    await bobHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync",
+        fn_name: "create_did_pub_key_link",
+        payload: "did:test:bob"
+    });
+    
+    console.log("RENDER 1")
+    let commit = await call(aliceHapps, "commit", {
+        additions: [generate_link_expression("alice1")], 
+        removals: []
+    });
+    console.warn("\ncommit", commit);
+    
+    await call(aliceHapps, "update_current_revision", commit);
+
+    let commit2 = await call(aliceHapps, "commit", {
+        additions: [generate_link_expression("alice2")], 
+        removals: []
+    });
+    console.warn("\ncommit", commit2);
+    
+    console.log("RENDER 2")
+
+    await call(aliceHapps, "update_current_revision", commit2);
+
+    let alice_rendered = await call(aliceHapps, "render");
+    //@ts-ignore
+    t.equal(alice_rendered.links.length, 2)
+
+    await sleep(5000);
+    
+    console.log("RENDER 3")
+
+    // Bob hasn't pulled yet, so render on Bob should fail
+    let firstRenderFailed = false
+    try {
+        let bob_render = await call(bobHapps, "render");
+    } catch(e) {
+        firstRenderFailed = true
+    }
+
+    t.assert(firstRenderFailed)
+
+    await call(bobHapps, "pull", { hash: commit2, is_scribe: false })
+
+    console.log("Bob has pulled")
+
+    let bob_render = await call(bobHapps, "render");
+
+    
+    console.log("RENDER 4")
+    console.warn("bob rendered with", bob_render);
+    //@ts-ignore
+    t.deepEqual(bob_render.links.length, 2);
+
+    await call(bobHapps, "update_current_revision", commit2);
+
+    let commit4 = await call(bobHapps, "commit", {
+        additions: [generate_link_expression("bob3")], 
+        removals: []
+    });
+    console.warn("\ncommit", commit4);
+    
+    await call(bobHapps, "update_current_revision", commit4);
+
+
+    let commit5 = await call(bobHapps, "commit", {
+        additions: [generate_link_expression("bob4")], 
+        removals: []
+    });
+    console.warn("\ncommit", commit5);
+    
+    await call(bobHapps, "update_current_revision", commit5);
+
+    await sleep(1000);
+
+    console.log("RENDER 5")
+    await call(aliceHapps, "pull", { hash: commit5, is_scribe: true }); 
+    let alice_render = await call(aliceHapps, "render");
+    console.warn("Alice rendered with", alice_render);
+    //@ts-ignore
+    t.deepEqual(alice_render.links.length, 4);
+
+    await conductor1.shutDown();
+    await conductor2.shutDown();
+    await cleanAllConductors();
+};
+
+//@ts-ignore
+export async function renderMerges(t) {
+    let installs = await createConductors(2);
+    let aliceHapps = installs[0].agent_happ;
+    let conductor1 = installs[0].conductor;
+    let bobHapps = installs[1].agent_happ;
+    let conductor2 = installs[1].conductor;
+
+    //Create did/pub key link for alice and bob
+    await aliceHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync",
+        fn_name: "create_did_pub_key_link",
+        payload: "did:test:alice"
+    });
+    await bobHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync",
+        fn_name: "create_did_pub_key_link",
+        payload: "did:test:bob"
+    });
+    
+    console.log("commit1");
+    let commit = await aliceHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync", 
+        fn_name: "commit", 
+        payload: {additions: [generate_link_expression("alice1")], removals: []}
+    });
+    console.warn("\ncommit", commit);
+    
+    await aliceHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync", 
+        fn_name: "update_current_revision", 
+        payload: commit
+    });
+
+    console.log("commit2");
+    let commit2 = await aliceHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync", 
+        fn_name: "commit", 
+        payload: {additions: [generate_link_expression("alice2")], removals: []}
+    });
+    console.warn("\ncommit", commit2);
+
+    await aliceHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync", 
+        fn_name: "update_current_revision", 
+        payload: commit2
+    });
+
+    console.log("commit3");
+    let commit3 = await bobHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync", 
+        fn_name: "commit", 
+        payload: {additions: [generate_link_expression("bob1")], removals: []}
+    });
+    console.warn("\ncommit", commit3);
+    
+    await bobHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync", 
+        fn_name: "update_current_revision", 
+        payload: commit3
+    });
+
+    console.log("commit4");
+    let commit4 = await bobHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync", 
+        fn_name: "commit", 
+        payload: {additions: [generate_link_expression("bob2")], removals: []}
+    });
+    console.warn("\ncommit", commit4);
+    
+    await bobHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync", 
+        fn_name: "update_current_revision", 
+        payload: commit4
+    });
+
+    console.log("bob render");
+    let bob_render = await bobHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync", 
+        fn_name: "render"
+    });
+    console.warn("bob rendered with", bob_render);
+    //@ts-ignore
+    t.isEqual(bob_render.links.length, 2);
+
+    console.log("alice render");
+    let alice_render = await aliceHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync", 
+        fn_name: "render"
+    });
+    console.warn("Alice rendered with", alice_render);
+    //@ts-ignore
+    t.isEqual(alice_render.links.length, 2);
+    
+    await addAllAgentsToAllConductors([conductor1, conductor2]);
+    await sleep(500);
+
+    //Test getting revision, should return bob's revision since that is the latest entry
+
+    //Alice commit which will create a merge and another entry
+    console.log("commit5");
+    let commit5 = await aliceHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync", 
+        fn_name: "commit", 
+        payload: {additions: [generate_link_expression("alice3")], removals: []}
+    });
+    console.warn("\ncommit5", commit5);
+    
+    await aliceHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync", 
+        fn_name: "update_current_revision", 
+        payload: commit5
+    });
+
+    //Alice commit which should not create another snapshot
+    console.log("commit6");
+    let commit6 = await aliceHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync", 
+        fn_name: "commit", 
+        payload: {additions: [generate_link_expression("alice4")], removals: []}
+    });
+    console.warn("\ncommit6", commit6);
+    
+    await aliceHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync", 
+        fn_name: "update_current_revision", 
+        payload: commit6
+    });
+    await sleep(2000)
+
+    console.log("bob pull");
+    await call(bobHapps, "pull", { hash: commit6, is_scribe: true })
+    
+    console.log("bob render");
+    let bob_render2 = await bobHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync", 
+        fn_name: "render"
+    });
+    console.warn("bob rendered with", bob_render2);
+    //@ts-ignore
+    t.isEqual(bob_render2.links.length, 6);
+
+    console.log("alice render");
+    let alice_render2 = await aliceHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync", 
+        fn_name: "render"
+    });
+    console.warn("Alice rendered with", alice_render2);
+    //@ts-ignore
+    t.isEqual(alice_render2.links.length, 4);
+
+    await conductor1.shutDown();
+    await conductor2.shutDown();
+    await cleanAllConductors();
+}
+
+test("render", async (t) => {
+    await render(t)
+    await renderMerges(t)
+    t.end()
+    process.exit(0);
+})
\ No newline at end of file
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/revisions.ts b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/revisions.ts
new file mode 100644
index 000000000..75b274839
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/revisions.ts
@@ -0,0 +1,92 @@
+import { addAllAgentsToAllConductors, cleanAllConductors } from "@holochain/tryorama";
+import { sleep, createConductors, create_link_expression } from "./utils";
+import test from "tape-promise/tape.js";
+
+//@ts-ignore
+export async function testRevisionUpdates(t) {
+    let installs = await createConductors(2);
+    let aliceHapps = installs[0].agent_happ;
+    let aliceConductor = installs[0].conductor;
+    let bobHapps = installs[1].agent_happ;
+    let bobConductor = installs[1].conductor;
+
+    await addAllAgentsToAllConductors([aliceConductor, bobConductor]);
+
+    //Create did/pub key link for alice and bob
+    await aliceHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync",
+        fn_name: "create_did_pub_key_link",
+        payload: "did:test:alice"
+    });
+    await bobHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync",
+        fn_name: "create_did_pub_key_link",
+        payload: "did:test:bob"
+    });
+
+    let current_revision = await aliceHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync", 
+        fn_name: "current_revision"
+    });
+    console.warn("current_revision", current_revision);
+
+    let commit = await aliceHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync", 
+        fn_name: "commit", 
+        payload: {additions: [], removals: []}
+    });
+    console.warn("\ncommit", commit);
+
+    let current_revision2 = await aliceHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync", 
+        fn_name: "current_revision"
+    });
+    console.warn("current_revision2", current_revision2);
+    //@ts-ignore
+    t.isEqual(commit.toString(), current_revision2.toString())
+
+    await sleep(1000)
+
+    //test bobs current revision is not updated
+    let bob_current_revision = await bobHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync", 
+        fn_name: "current_revision"
+    });
+    console.warn("bob_current_revision", bob_current_revision);
+    //@ts-ignore
+    t.isEqual(null, bob_current_revision);
+
+    let commit2 = await aliceHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync", 
+        fn_name: "commit", 
+        payload: {additions: [], removals: []}
+    });
+    //@ts-ignore
+    console.warn("\ncommit2", commit2);
+
+    let current_revision3 = await aliceHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync", 
+        fn_name: "current_revision"
+    });
+    console.warn("current_revision3", current_revision3);
+    //@ts-ignore
+    t.isEqual(current_revision3.toString(), commit2.toString());
+
+    let current_revision4 = await aliceHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync", 
+        fn_name: "current_revision"
+    });
+    console.warn("current_revision4", current_revision4);
+    //@ts-ignore
+    t.isEqual(commit2.toString(), current_revision4.toString())
+
+    await aliceConductor.shutDown();
+    await bobConductor.shutDown();
+    await cleanAllConductors();
+}
+
+test("test revision updates", async (t) => {
+    await testRevisionUpdates(t);
+    t.end()
+    process.exit(0)
+})
\ No newline at end of file
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/signals.ts b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/signals.ts
new file mode 100644
index 000000000..7bb262780
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/signals.ts
@@ -0,0 +1,106 @@
+import { Scenario } from "@holochain/tryorama";
+import { sleep, generate_link_expression } from "./utils";
+import { dnas } from "./common";
+import test from "tape-promise/tape.js";
+import { resolve } from "path";
+
+//@ts-ignore
+export async function signals(t) {
+    const scenario = new Scenario();
+    let aliceSignalCount = 0;
+    let bobSignalCount = 0;
+    
+    const aliceHapps = await scenario.addPlayerWithApp(
+        {
+            bundle: {
+                manifest: {
+                    manifest_version: "1",
+                    name: "perspective-diff-sync",
+                    roles: [{
+                        name: "main",
+                        dna: {
+                            //@ts-ignore
+                            path: resolve(dnas[0].source.path)
+                        }
+                    }]
+                },
+                resources: {}
+            },
+        }
+    );
+    const portAlice = await aliceHapps.conductor.attachAppInterface();
+    const appWs = await aliceHapps.conductor.connectAppWs(portAlice);
+    appWs.on("signal", (signal) => {
+        console.log("Alice Received Signal:",signal)
+        aliceSignalCount += 1;
+    });
+    const bobHapps = await scenario.addPlayerWithApp(
+        {
+            bundle: {
+                manifest: {
+                    manifest_version: "1",
+                    name: "perspective-diff-sync",
+                    roles: [{
+                        name: "main",
+                        dna: {
+                            //@ts-ignore
+                            path: resolve(dnas[0].source.path)
+                        }
+                    }]
+                },
+                resources: {}
+            }
+        }
+    );
+    const portBob = await bobHapps.conductor.attachAppInterface();
+    const appWsBob = await bobHapps.conductor.connectAppWs(portBob);
+    appWsBob.on("signal", (signal) => {
+        console.log("Bob Received Signal:",signal)
+        bobSignalCount += 1;
+    })
+
+    await aliceHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync",
+        fn_name: "create_did_pub_key_link",
+        payload: "did:test:alice"
+    });
+    await bobHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync",
+        fn_name: "create_did_pub_key_link",
+        payload: "did:test:bob"
+    });
+
+    
+    await scenario.shareAllAgents();
+
+    //Sleep to give time for bob active agent link to arrive at alice
+    await sleep(2000)
+
+    //Test case where subject object and predicate are given
+    let bob_link_data = generate_link_expression("bob");
+    await bobHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync", 
+        fn_name: "commit", 
+        payload: {additions: [bob_link_data], removals: []}
+    });
+    
+    //Test case where subject object and predicate are given
+    let link_data = generate_link_expression("alice");
+    await aliceHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync", 
+        fn_name: "commit", 
+        payload: {additions: [link_data], removals: []}
+    });
+    //Sleep to give time for signals to arrive
+    await sleep(1000)
+    
+    t.deepEqual(bobSignalCount, 1);
+
+    await scenario.cleanUp();
+}
+
+test("signals", async (t) => {
+    await signals(t)
+    t.end()
+    process.exit(0)
+})
\ No newline at end of file
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/stress.ts b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/stress.ts
new file mode 100644
index 000000000..31765bcc0
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/stress.ts
@@ -0,0 +1,355 @@
+import { AgentApp, addAllAgentsToAllConductors, cleanAllConductors, Conductor, Scenario } from "@holochain/tryorama";
+import { call, sleep, createConductors, create_link_expression, generate_link_expression} from "./utils";
+import ad4m, { DID, HolochainLanguageDelegate, LinkExpression, Perspective } from "@perspect3vism/ad4m"
+import test from "tape-promise/tape.js";
+import { hrtime } from 'node:process';
+//@ts-ignore
+import divide from 'divide-bigint'
+import { AsyncQueue } from "./queue";
+import { resolve } from "path";
+import { dnas } from "./common";
+let createdLinks = new Map<string, Array<LinkExpression>>()
+
+class PeerInfo {
+    currentRevision: Buffer | null = null;
+    lastSeen: Date = new Date();
+};
+
+let aliceRevision: Buffer | null = null;
+let bobRevision: Buffer | null = null;
+let aliceDid = "";
+let bobDid = "";
+
+async function createLinks(happ: AgentApp, agentName: string, count: number, queue?: AsyncQueue) {
+    if(!createdLinks.get(agentName)) createdLinks.set(agentName, [])
+    for(let i=0; i < count; i++) {
+        if (queue) {
+            await queue.add(async () => {
+                let { commitRaw, data } = await create_link_expression(happ.cells[0], agentName);
+                if (agentName === "alice") {
+                    aliceRevision = commitRaw;
+                } else if (agentName === "bob") {
+                    bobRevision = commitRaw;
+                }
+                createdLinks.get(agentName)!.push(data)
+            }).catch((e) => {
+                console.log("Error in create links queue", e);
+            })
+        } else {
+            let { data } = await create_link_expression(happ.cells[0], agentName);
+            createdLinks.get(agentName)!.push(data)
+        }
+    }
+}
+
+//@ts-ignore
+export async function latestRevisionStress(t) {
+    let installs = await createConductors(2);
+    let aliceHapps = installs[0].agent_happ;
+    let aliceConductor = installs[0].conductor;
+    let bobHapps = installs[1].agent_happ;
+    let bobConductor = installs[1].conductor;
+
+    await addAllAgentsToAllConductors([aliceConductor, bobConductor]);
+
+    let link_data = generate_link_expression("alice");
+    let commit = await aliceHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync", 
+        fn_name: "commit", 
+        payload: {additions: [link_data], removals: []}
+    });
+
+    for (let i = 0; i < 1000; i++) {
+        console.log("Latest update revision", i);
+        let now = performance.now();
+        let create = await aliceHapps.cells[0].callZome({zome_name: "perspective_diff_sync", fn_name: "update_latest_revision", payload: commit});
+        let after = performance.now();
+        console.log(" Create execution took: ", after - now);
+        let fetch = await aliceHapps.cells[0].callZome({zome_name: "perspective_diff_sync", fn_name: "latest_revision"});
+        let after2 = performance.now();
+        console.log("Fetch execution took: ", after2 - after);
+    }
+}
+  
+async function gossip(peers: Map<DID, PeerInfo>, me: DID, hcDna: HolochainLanguageDelegate) {
+    console.log("GOSSIP for ", me)
+    //@ts-ignore
+    await hcDna.call("DNA_NICK", "ZOME_NAME", "sync", null);
+    let lostPeers: DID[] = [];
+  
+    peers.forEach( (peerInfo, peer) => {
+      if (peerInfo.lastSeen.getTime() + 10000 < new Date().getTime()) {
+        lostPeers.push(peer);
+      }
+    });
+  
+    for (const peer of lostPeers) {
+      peers.delete(peer);
+    }
+  
+    // flatten the map into an array of peers
+    let allPeers = Array.from(peers.keys())
+    allPeers.push(me);
+    // Lexically sort the peers
+    allPeers.sort();
+  
+    // If we are the first peer, we are the scribe
+    let is_scribe = (allPeers[0] == me);
+
+    console.log("IS SCRIBE", is_scribe, me)
+    
+    // Get a deduped set of all peer's current revisions
+    let revisions = new Set<Buffer>();
+    for(const peerInfo of peers.values()) {
+        if (peerInfo.currentRevision) revisions.add(peerInfo.currentRevision);
+    }
+
+    console.log(`
+    ======
+    GOSSIP
+    --
+    me: ${me}
+    is scribe: ${is_scribe}
+    --
+    ${Array.from(peers.entries()).map( ([peer, peerInfo]) => {
+      //@ts-ignore
+      return `${peer}: ${peerInfo.currentRevision.toString('base64')} ${peerInfo.lastSeen.toISOString()}\n`
+    })}
+    --
+    revisions: ${Array.from(revisions).map( (hash) => {
+        //@ts-ignore
+        return hash.toString('base64')
+      })}
+    `);
+  
+    revisions.forEach( async (hash) => {
+        console.log("PULLING", hash, is_scribe, aliceRevision, bobRevision) 
+        if(!hash) return
+        if (me === aliceDid) {
+            if (hash === aliceRevision) {
+                console.log("Alice skipping pull since we already sync'd on this gossip loop");
+                return
+            }
+        }
+        if (me === bobDid) {
+            if (hash === bobRevision) {
+                console.log("Bob skipping pull since we already sync'd on this gossip loop");
+                return
+            }
+        }
+        let pullResult = await hcDna.call("DNA_NICK", "ZOME_NAME", "pull", { 
+            hash,
+            is_scribe 
+        });
+        if (pullResult) {
+            let myRevision = pullResult.current_revision;
+            if (me === aliceDid) aliceRevision = myRevision;
+            if (me === bobDid) bobRevision = myRevision;
+        }
+    })
+  }
+
+//@ts-ignore
+export async function stressTest(t) {
+    const aliceQueue = new AsyncQueue();
+    const bobQueue = new AsyncQueue();
+
+    const scenario = new Scenario();
+    const aliceHapps = await scenario.addPlayerWithApp(
+        {
+            bundle: {
+                manifest: {
+                    manifest_version: "1",
+                    name: "perspective-diff-sync",
+                    roles: [{
+                        name: "main",
+                        dna: {
+                            //@ts-ignore
+                            path: resolve(dnas[0].source.path)
+                        }
+                    }]
+                },
+                resources: {}
+            },
+        }
+    );
+    const alicePeersList: Map<DID, PeerInfo> = new Map();
+    const portAlice = await aliceHapps.conductor.attachAppInterface();
+    const appWs = await aliceHapps.conductor.connectAppWs(portAlice);
+    appWs.on("signal", (signal) => {
+        //console.log("Alice Received Signal:",signal);
+        const { diff, reference_hash, reference, broadcast_author } = signal.payload;
+        if (diff && reference_hash && reference && broadcast_author) {
+            console.log(`PerspectiveDiffSync.handleHolochainSignal: 
+            diff: ${JSON.stringify(diff)}
+            reference_hash: ${reference_hash.toString('base64')}
+            reference: {
+                diff: ${reference.diff?.toString('base64')}
+                parents: ${reference.parents ? reference.parents.map( (parent: Buffer) => parent ? parent.toString('base64') : 'null').join(', '):'none'}
+                diffs_since_snapshot: ${reference?.diffs_since_snapshot}
+            }
+            broadcast_author: ${broadcast_author}
+            `)
+            alicePeersList.set(broadcast_author, { currentRevision: reference_hash, lastSeen: new Date() });
+        } else {
+            console.log("PerspectiveDiffSync.handleHolochainSignal: got other signal:", signal.payload)
+        }
+    });
+    const bobHapps = await scenario.addPlayerWithApp(
+        {
+            bundle: {
+                manifest: {
+                    manifest_version: "1",
+                    name: "perspective-diff-sync",
+                    roles: [{
+                        name: "main",
+                        dna: {
+                            //@ts-ignore
+                            path: resolve(dnas[0].source.path)
+                        }
+                    }]
+                },
+                resources: {}
+            }
+        }
+    );
+    const bobPeersList: Map<DID, PeerInfo> = new Map();
+    const portBob = await bobHapps.conductor.attachAppInterface();
+    const appWsBob = await bobHapps.conductor.connectAppWs(portBob);
+    appWsBob.on("signal", (signal) => {
+        console.log("Bob Received Signal:",signal)
+        const { diff, reference_hash, reference, broadcast_author } = signal.payload;
+        if (diff && reference_hash && reference && broadcast_author) {
+            bobPeersList.set(broadcast_author, { currentRevision: reference_hash, lastSeen: new Date() });
+        }
+    })
+
+    //Create did/pub key link for alice and bob
+    await aliceHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync",
+        fn_name: "create_did_pub_key_link",
+        payload: "did:test:alice"
+    });
+    aliceDid = "did:test:alice";
+    await bobHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync",
+        fn_name: "create_did_pub_key_link",
+        payload: "did:test:bob"
+    });
+    bobDid = "did:test:bob";
+
+    let done = false;
+    async function processGossip() {
+        await Promise.all([gossip(alicePeersList, "did:test:alice", {
+            call: async (nick, zome, fn_name, payload) => {
+                await aliceQueue.add( async () => {
+                    try{
+                        await aliceHapps.cells[0].callZome({
+                            zome_name: "perspective_diff_sync", 
+                            fn_name,
+                            payload
+                        })
+                    } catch(e) {
+                        console.log("ERROR during alice zome call", e)
+                    }
+                    
+                })
+            }
+        } as HolochainLanguageDelegate),
+        gossip(bobPeersList, "did:test:bob", {
+            call: async (nick, zome, fn_name, payload) => {
+                await bobQueue.add( async () => {
+                    try {
+                        await bobHapps.cells[0].callZome({
+                            zome_name: "perspective_diff_sync", 
+                            fn_name,
+                            payload
+                        })
+                    } catch(e) {
+                        console.log("ERROR during bob zome call", e)
+                    }
+                    
+                })
+            }
+        } as HolochainLanguageDelegate)])
+        await sleep(1000)
+        if(!done) {
+            processGossip()
+        }
+        
+    }
+
+    processGossip()
+
+    let aliceConductor = aliceHapps.conductor
+    let bobConductor = bobHapps.conductor;
+    let hash = Buffer.from((await aliceConductor.adminWs().listDnas())[0]);
+
+    await addAllAgentsToAllConductors([aliceConductor, bobConductor]);
+
+    console.log("==============================================")
+    console.log("=================START========================")
+    console.log("==============================================")
+    for(let i=0; i < 10; i++) {
+        console.log("-------------------------");
+        console.log("Iteration: ", i)
+        console.log("-------------------------");
+        const start = hrtime.bigint();
+        await Promise.all([
+            createLinks(aliceHapps, "alice", 20, aliceQueue),
+            createLinks(bobHapps, "bob", 20, bobQueue)
+        ])
+        const end = hrtime.bigint();
+        console.log(`Creating links took ${divide(end - start, 1000000)} ms`);
+
+        console.log("-------------------------");
+        console.log("Created 20 links each (Alice and Bob)");
+        console.log("waiting a second");
+        console.log("-------------------------");
+
+        await sleep(1000)
+
+        console.log("-------------------------");
+        console.log("All good :)))))))))))))))");
+        console.log("-------------------------");
+
+    }
+
+    // Wait for gossip of latest_revision, needed for render
+    await sleep(15000)
+
+    done = true;
+    aliceQueue.clear();
+    bobQueue.clear()
+
+    const startRenderA = hrtime.bigint();
+    let alice_rendered = await call(aliceHapps, "render") as Perspective
+    const endRenderA = hrtime.bigint();
+    console.log(`Alice render took ${divide(endRenderA - startRenderA, 1000000)} ms`);
+
+    const startRenderB = hrtime.bigint();
+    let bob_rendered = await call(bobHapps, "render") as Perspective
+    const endRenderB = hrtime.bigint();
+    console.log(`Bob render took ${divide(endRenderB - startRenderB, 1000000)} ms`);
+
+    t.isEqual(alice_rendered.links.length, bob_rendered.links.length)
+
+    function includes(perspective: Perspective, link: LinkExpression) {
+        return perspective.links.find(l => ad4m.linkEqual(l,link))
+    }
+
+    for(let link of createdLinks.get("alice")!) {
+        t.assert(includes(alice_rendered, link))
+        t.assert(includes(bob_rendered, link))
+    }
+
+    await aliceConductor.shutDown();
+    await bobConductor.shutDown();
+    await cleanAllConductors();
+}
+
+test("stress", async (t) => {
+    await stressTest(t);
+    t.end()
+    process.exit(0)
+})
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/telepresence.ts b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/telepresence.ts
new file mode 100644
index 000000000..72391d3a0
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/telepresence.ts
@@ -0,0 +1,172 @@
+import { addAllAgentsToAllConductors, Scenario } from "@holochain/tryorama";
+import { sleep, generate_link_expression, sortedObject } from "./utils";
+import test from "tape-promise/tape.js";
+import { resolve } from "path";
+import { dnas } from "./common";
+import { PerspectiveExpression } from "@perspect3vism/ad4m";
+
+function generate_perspective_expression(author: string, linkContent: string): PerspectiveExpression {
+    return {
+        author: author,
+        timestamp: new Date().toISOString(), 
+        data: {
+            links: [generate_link_expression(linkContent)]
+        },
+        proof: {signature: "sig", key: "key"},
+    };
+}
+//@ts-ignore
+export async function testTelepresence(t) {
+    const scenario = new Scenario();
+    let aliceSignalCount = 0;
+    let bobSignalCount = 0;
+    
+    const aliceHapps = await scenario.addPlayerWithApp(
+        {
+            bundle: {
+                manifest: {
+                    manifest_version: "1",
+                    name: "perspective-diff-sync",
+                    roles: [{
+                        name: "main",
+                        dna: {
+                            //@ts-ignore
+                            path: resolve(dnas[0].source.path)
+                        }
+                    }]
+                },
+                resources: {}
+            },
+        }
+    );
+    const portAlice = await aliceHapps.conductor.attachAppInterface();
+    const appWs = await aliceHapps.conductor.connectAppWs(portAlice);
+    appWs.on("signal", (signal) => {
+        console.log("Alice Received Signal:",signal)
+        aliceSignalCount += 1;
+    });
+    const bobHapps = await scenario.addPlayerWithApp(
+        {
+            bundle: {
+                manifest: {
+                    manifest_version: "1",
+                    name: "perspective-diff-sync",
+                    roles: [{
+                        name: "main",
+                        dna: {
+                            //@ts-ignore
+                            path: resolve(dnas[0].source.path)
+                        }
+                    }]
+                },
+                resources: {}
+            }
+        }
+    );
+    const portBob = await bobHapps.conductor.attachAppInterface();
+    const appWsBob = await bobHapps.conductor.connectAppWs(portBob);
+    appWsBob.on("signal", (signal) => {
+        console.log("Bob Received Signal:",signal)
+        bobSignalCount += 1;
+    })
+
+    await scenario.shareAllAgents();
+    await addAllAgentsToAllConductors([aliceHapps.conductor, bobHapps.conductor]);
+
+    const bobDid = "did:key:bob";
+    const aliceDid = "did:key:alice";
+
+    //Create did/pub key link for alice and bob
+    await aliceHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync",
+        fn_name: "create_did_pub_key_link",
+        payload: aliceDid
+    });
+    await bobHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync",
+        fn_name: "create_did_pub_key_link",
+        payload: bobDid
+    });
+    console.log("Set did pub key links");
+
+    //Sleep to give time for gossip
+    await sleep(2000)
+
+    //Test setting and getting agent status
+    let perspectiveExpression = generate_perspective_expression(aliceDid, "alice");
+    await aliceHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync",
+        fn_name: "set_online_status",
+        payload: perspectiveExpression
+    });
+    console.log("Set online status");
+
+    let bobSeenStatus = await bobHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync",
+        fn_name: "get_online_agents",
+    });
+    //@ts-ignore
+    t.isEqual(bobSeenStatus.length, 1);
+    //@ts-ignore
+    t.equal(JSON.stringify(sortedObject(bobSeenStatus[0].status)), JSON.stringify(sortedObject(perspectiveExpression)));
+    //@ts-ignore
+    t.equal(JSON.stringify(sortedObject(bobSeenStatus[0].status.data.links[0])), JSON.stringify(sortedObject(perspectiveExpression.data.links[0])));
+
+    //Test that if alice updates her online status that bob sees the update, and does not get duplicates
+    perspectiveExpression = generate_perspective_expression(aliceDid, "alice2");
+
+    await aliceHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync",
+        fn_name: "set_online_status",
+        payload: perspectiveExpression
+    });
+    bobSeenStatus = await bobHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync",
+        fn_name: "get_online_agents",
+    });
+    //@ts-ignore
+    t.isEqual(bobSeenStatus.length, 1);
+    //@ts-ignore
+    t.equal(JSON.stringify(sortedObject(bobSeenStatus[0].status)), JSON.stringify(sortedObject(perspectiveExpression)));
+    //@ts-ignore
+    t.equal(JSON.stringify(sortedObject(bobSeenStatus[0].status.data.links[0])), JSON.stringify(sortedObject(perspectiveExpression.data.links[0])));
+
+    //Test sending signal to single agent
+    await aliceHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync",
+        fn_name: "send_signal",
+        payload: {remote_agent_did: "did:key:bob", payload: perspectiveExpression}
+    });
+    //Sleep to give time for signals to arrive
+    await sleep(1000)
+    //@ts-ignore
+    t.isEqual(bobSignalCount, 1);
+
+
+    //Test sending broadcast
+    await bobHapps.cells[0].callZome({
+        zome_name: "perspective_diff_sync",
+        fn_name: "send_broadcast",
+        payload: perspectiveExpression
+    });
+    //Sleep to give time for signals to arrive
+    await sleep(1000)
+    //@ts-ignore
+    t.isEqual(aliceSignalCount, 1);
+
+    await scenario.cleanUp();
+};
+
+test("telepresence", async (t) => {
+    //t.plan(20)
+    try {
+        await testTelepresence(t);
+    } catch(e) {
+        console.error("telepresence test failed with error", e);
+        //@ts-ignore
+        t.fail(e)
+    } finally {
+        t.end()
+        process.exit(0)
+    }
+})
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/tsconfig.json b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/tsconfig.json
new file mode 100644
index 000000000..0a629b1e4
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/tsconfig.json
@@ -0,0 +1,16 @@
+{
+  "compilerOptions": {
+    "module": "ESNext",
+    "target": "ESNext",
+    "moduleResolution": "Node",
+    "sourceMap": true,
+    "declaration": true,
+    "forceConsistentCasingInFileNames": true,
+    "allowSyntheticDefaultImports": true,
+    "skipLibCheck": true,
+    "strict": true
+  },
+  "include": [
+    "ts/**/*"
+  ]
+}
\ No newline at end of file
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/utils.ts b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/utils.ts
new file mode 100644
index 000000000..54744eb99
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/utils.ts
@@ -0,0 +1,86 @@
+import { AgentApp, CallableCell, Conductor, NetworkType, enableAndGetAgentApp, runLocalServices } from "@holochain/tryorama";
+import faker from "faker";
+import { dnas } from './common';
+import { createConductor } from "@holochain/tryorama";
+import { resolve } from "path";
+
+export async function call(happ: AgentApp, fn_name: string, payload?: any) {
+    return await happ.cells[0].callZome({
+        zome_name: "perspective_diff_sync", 
+        fn_name,
+        payload
+    }, 60000);
+}
+
+export function generate_link_expression(agent: string) {
+    return {
+      data: {source: faker.name.findName(), target: faker.name.findName(), predicate: faker.name.findName()},
+      author: agent, 
+      timestamp: new Date().toISOString(), 
+      proof: {signature: "sig", key: "key"},
+   }
+}
+
+export async function create_link_expression(cell: CallableCell, agent: string): Promise<{commit: string, data: any, commitRaw: Buffer}> {
+    let link_data = generate_link_expression(agent);
+    let commit = await cell.callZome({
+        zome_name: "perspective_diff_sync", 
+        fn_name: "commit", 
+        payload: {additions: [link_data], removals: []}
+    }, 60000);
+    //@ts-ignore
+    return {commit: commit.toString("base64"), data: link_data, commitRaw: commit}
+}
+
+export function sleep(ms: number) {
+    return new Promise(resolve => setTimeout(resolve, ms));
+}
+
+export async function createConductors(num: number): Promise<{agent_happ: AgentApp, conductor: Conductor}[]> {
+    let out = [] as {agent_happ: AgentApp, conductor: Conductor}[];
+
+    const localServices = await runLocalServices();
+
+    for (let n of Array(num).keys()) {
+        let conductor = await createConductor(localServices.signalingServerUrl, {networkType: NetworkType.WebRtc, bootstrapServerUrl: localServices.bootstrapServerUrl});
+        let port = await conductor.attachAppInterface();
+        let appWs = await conductor.connectAppWs(port);
+        try {
+            let app = await conductor.installApp({
+                bundle: {
+                    manifest: {
+                        manifest_version: "1",
+                        name: "perspective-diff-sync",
+                        roles: [{
+                            name: "main",
+                            dna: {
+                                //@ts-ignore
+                                path: resolve(dnas[0].source.path)
+                            }
+                        }]
+                    },
+                    resources: {}
+                }
+            });
+            const agentApp = await enableAndGetAgentApp(conductor.adminWs(), appWs, app);
+            out.push({
+                agent_happ: agentApp,
+                conductor
+            })
+        } catch (e) {
+            console.error(e);
+        }
+    }
+    return out
+}
+
+//@ts-ignore
+export function sortedObject(unordered) {
+  if(typeof unordered !== "object") return unordered;
+  return Object.keys(unordered).sort().reduce(
+    (obj, key) => {
+        //@ts-ignore
+        obj[key] = sortedObject(unordered[key]);
+        return obj;
+    }, {});
+}
\ No newline at end of file
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/yarn.lock b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/yarn.lock
new file mode 100644
index 000000000..00d1b3687
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/hc-dna/zomes/tests/yarn.lock
@@ -0,0 +1,1833 @@
+# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
+# yarn lockfile v1
+
+
+"@apollo/client@3.6.9":
+  version "3.6.9"
+  resolved "https://registry.npmjs.org/@apollo/client/-/client-3.6.9.tgz"
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+    available-typed-arrays "^1.0.5"
+    call-bind "^1.0.2"
+    es-abstract "^1.20.0"
+    for-each "^0.3.3"
+    has-tostringtag "^1.0.0"
+    is-typed-array "^1.1.9"
+
+winston-transport@^4.5.0:
+  version "4.5.0"
+  resolved "https://registry.npmjs.org/winston-transport/-/winston-transport-4.5.0.tgz"
+  integrity sha512-YpZzcUzBedhlTAfJg6vJDlyEai/IFMIVcaEZZyl3UXIl4gmqRpU7AE89AHLkbzLUsv0NVmw7ts+iztqKxxPW1Q==
+  dependencies:
+    logform "^2.3.2"
+    readable-stream "^3.6.0"
+    triple-beam "^1.3.0"
+
+winston@^3.8.2:
+  version "3.8.2"
+  resolved "https://registry.npmjs.org/winston/-/winston-3.8.2.tgz"
+  integrity sha512-MsE1gRx1m5jdTTO9Ld/vND4krP2To+lgDoMEHGGa4HIlAUyXJtfc7CxQcGXVyz2IBpw5hbFkj2b/AtUdQwyRew==
+  dependencies:
+    "@colors/colors" "1.5.0"
+    "@dabh/diagnostics" "^2.0.2"
+    async "^3.2.3"
+    is-stream "^2.0.0"
+    logform "^2.4.0"
+    one-time "^1.0.0"
+    readable-stream "^3.4.0"
+    safe-stable-stringify "^2.3.1"
+    stack-trace "0.0.x"
+    triple-beam "^1.3.0"
+    winston-transport "^4.5.0"
+
+wrappy@1:
+  version "1.0.2"
+  resolved "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz"
+  integrity sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ==
+
+ws@^8.11.0:
+  version "8.12.1"
+  resolved "https://registry.npmjs.org/ws/-/ws-8.12.1.tgz"
+  integrity sha512-1qo+M9Ba+xNhPB+YTWUlK6M17brTut5EXbcBaMRN5pH5dFrXz7lzz1ChFSUq3bOUl8yEvSenhHmYUNJxFzdJew==
+
+ws@^8.13.0:
+  version "8.14.1"
+  resolved "https://registry.yarnpkg.com/ws/-/ws-8.14.1.tgz#4b9586b4f70f9e6534c7bb1d3dc0baa8b8cf01e0"
+  integrity sha512-4OOseMUq8AzRBI/7SLMUwO+FEDnguetSk7KMb1sHwvF2w2Wv5Hoj0nlifx8vtGsftE/jWHojPy8sMMzYLJ2G/A==
+
+yallist@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.npmjs.org/yallist/-/yallist-4.0.0.tgz"
+  integrity sha512-3wdGidZyq5PB084XLES5TpOSRA3wjXAlIWMhum2kRcv/41Sn2emQ0dycQW4uZXLejwKvg6EsvbdlVL+FYEct7A==
+
+yn@3.1.1:
+  version "3.1.1"
+  resolved "https://registry.npmjs.org/yn/-/yn-3.1.1.tgz"
+  integrity sha512-Ux4ygGWsu2c7isFWe8Yu1YluJmqVhxqK2cLXNQA5AcC3QfbGNpM7fu0Y8b/z16pXLnFxZYvWhd3fhBY9DLmC6Q==
+
+zen-observable-ts@^1.2.5:
+  version "1.2.5"
+  resolved "https://registry.npmjs.org/zen-observable-ts/-/zen-observable-ts-1.2.5.tgz"
+  integrity sha512-QZWQekv6iB72Naeake9hS1KxHlotfRpe+WGNbNx5/ta+R3DNjVO2bswf63gXlWDcs+EMd7XY8HfVQyP1X6T4Zg==
+  dependencies:
+    zen-observable "0.8.15"
+
+zen-observable@0.8.15:
+  version "0.8.15"
+  resolved "https://registry.npmjs.org/zen-observable/-/zen-observable-0.8.15.tgz"
+  integrity sha512-PQ2PC7R9rslx84ndNBZB/Dkv8V8fZEpk83RLgXtYd0fwUgEjseMn1Dgajh2x6S8QbZAFa9p2qVCEuYZNgve0dQ==
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/index.ts b/bootstrap-languages/p-diff-sync-socket-signaling/index.ts
new file mode 100644
index 000000000..92625a1d5
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/index.ts
@@ -0,0 +1,59 @@
+import type { Address, Language, Interaction, HolochainLanguageDelegate, LanguageContext, AgentService } from "https://esm.sh/@perspect3vism/ad4m@0.5.0";
+import { LinkAdapter } from "./linksAdapter.ts";
+import { TelepresenceAdapterImplementation } from "./telepresenceAdapter.ts";
+import { DNA, DNA_NICK, ZOME_NAME } from "./build/dna.js";
+
+function interactions(expression: Address): Interaction[] {
+  return [];
+}
+
+//!@ad4m-template-variable
+const name = "perspective-diff-sync";
+
+//!@ad4m-template-variable
+const uid = "perspective-diff-sync-uuid";
+
+export default async function create(context: LanguageContext): Promise<Language> {
+  const Holochain = context.Holochain as HolochainLanguageDelegate;
+  const agent = context.agent as AgentService;
+
+  const linksAdapter = new LinkAdapter(context, uid);
+  const telepresenceAdapter = new TelepresenceAdapterImplementation(context);
+
+  await Holochain.registerDNAs(
+    //@ts-ignore
+    [{ file: DNA, nick: DNA_NICK, zomeCalls: 
+      [
+        [ZOME_NAME, "current_revision"],
+        [ZOME_NAME, "sync"],
+        [ZOME_NAME, "render"],
+        [ZOME_NAME, "commit"],
+        [ZOME_NAME, "fast_forward_signal"],
+        [ZOME_NAME, "get_others"],
+        [ZOME_NAME, "add_active_agent_link"],
+        [ZOME_NAME, "create_did_pub_key_link"],
+      ]
+    }],
+    async (signal) => { 
+      //@ts-ignore
+      if (signal.payload.diff || (signal.payload.additions && signal.payload.removals)) {
+        await linksAdapter.handleHolochainSignal(signal)
+      } else {
+        for (const callback of telepresenceAdapter.signalCallbacks) {
+          await callback(signal.payload);
+        }
+      }
+    }
+  );
+
+  //Setup the link between did and agent pub key
+  await Holochain.call(DNA_NICK, ZOME_NAME, "create_did_pub_key_link", agent.did);
+
+  //@ts-ignore
+  return {
+    name,
+    linksAdapter,
+    interactions,
+    telepresenceAdapter
+  } as Language;
+}
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/integration-test.js b/bootstrap-languages/p-diff-sync-socket-signaling/integration-test.js
new file mode 100644
index 000000000..a8b36a0bd
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/integration-test.js
@@ -0,0 +1,20 @@
+const { spawnLinkAgent } = require("@perspect3vism/ad4m-test/helpers");
+
+describe("Link", () => {
+  it("Create Link", async () => {
+    const agent = await spawnLinkAgent();
+
+    const all = await agent.queryLinks({});
+
+    expect(all.length).toBe(0)
+    
+    const link = await agent.addLink({source:"root", predicate: "soic://test", target:"QmYVsrMpiFmV9S7bTWNAkUzSqjRJskQ8g4TWKKwKrHAPqL://QmSsCCtXMDAZXMpyiNLzwjGEU4hLmhG7fphidhEEodQ4Wy"})
+
+    const all1 = await agent.queryLinks({});
+
+    expect(all1.length).toBe(1)
+    expect(all1[0].data.source).toBe(link.data.source)
+    expect(all1[0].data.predicate).toBe(link.data.predicate)
+    expect(all1[0].data.target).toBe(link.data.target)
+  });
+})
\ No newline at end of file
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/linksAdapter.ts b/bootstrap-languages/p-diff-sync-socket-signaling/linksAdapter.ts
new file mode 100644
index 000000000..3701d6607
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/linksAdapter.ts
@@ -0,0 +1,378 @@
+import { LinkSyncAdapter, PerspectiveDiffObserver, HolochainLanguageDelegate, LanguageContext, PerspectiveDiff, 
+  LinkExpression, DID, Perspective, PerspectiveState } from "https://esm.sh/@perspect3vism/ad4m@0.5.0";
+import type { SyncStateChangeObserver } from "https://esm.sh/@perspect3vism/ad4m@0.5.0";
+import { Mutex, withTimeout } from "https://esm.sh/async-mutex@0.4.0";
+import { DNA_NICK, ZOME_NAME } from "./build/dna.js";
+import { io } from "https://esm.sh/socket.io-client@4.7.2";
+
+class PeerInfo {
+  //@ts-ignore
+  currentRevision: Buffer;
+  //@ts-ignore
+  lastSeen: Date;
+};
+
+export class LinkAdapter implements LinkSyncAdapter {
+  hcDna: HolochainLanguageDelegate;
+  linkCallback?: PerspectiveDiffObserver
+  syncStateChangeCallback?: SyncStateChangeObserver
+  peers: Map<DID, PeerInfo> = new Map();
+  generalMutex: Mutex = withTimeout(new Mutex(), 10000, new Error('PerspectiveDiffSync: generalMutex timeout'));
+  me: DID
+  gossipLogCount: number = 0;
+  myCurrentRevision: Buffer | null = null;
+  languageName: String | null = null;
+  socket: any;
+
+  constructor(context: LanguageContext, name: String) {
+    //@ts-ignore
+    this.hcDna = context.Holochain as HolochainLanguageDelegate;
+    this.me = context.agent.did;
+    this.languageName = name;
+    this.socket = io("https://socket.ad4m.dev", { transports: ['websocket', 'polling'], autoConnect: true });
+    console.log("Created socket connection");
+    this.socket.on('error', (error: any) => {
+      console.error('Error:', error);
+    });
+    this.socket.on('connect', () => {
+      console.log('Connected to the server');
+      try {
+        this.socket.emit("join-room", this.languageName);
+        console.log("Sent the join-room signal");
+      } catch (e) {
+        console.error("Error in socket connection: ", e);
+      }
+    });
+    this.socket.on("signal", (signal: any) => {
+      this.handleHolochainSignal(signal);
+    });
+    this.socket.on('disconnect', () => {
+      console.log('Disconnected from the server');
+    });
+    this.socket.on('connect_error', (error) => {
+      console.error('Connection Error:', error);
+    });
+    this.socket.on('reconnect_attempt', () => {
+      console.log('Trying to reconnect...');
+    });
+  }
+
+  writable(): boolean {
+    return true;
+  }
+
+  public(): boolean {
+    return false;
+  }
+
+  async others(): Promise<DID[]> {
+    //@ts-ignore
+    return await this.hcDna.call(DNA_NICK, ZOME_NAME, "get_others", null);
+  }
+
+  async currentRevision(): Promise<string> {
+    //@ts-ignore
+    let res = await this.hcDna.call(DNA_NICK, ZOME_NAME, "current_revision", null);
+    return res as string;
+  }
+
+  async sync(): Promise<PerspectiveDiff> {
+    //console.log("PerspectiveDiffSync.sync(); Getting lock");
+    const release = await this.generalMutex.acquire();
+    //console.log("PerspectiveDiffSync.sync(); Got lock");
+    try {
+      //@ts-ignore
+      let broadcast_payload = await this.hcDna.call(DNA_NICK, ZOME_NAME, "get_broadcast_payload", null);
+      if (broadcast_payload) {
+        if (broadcast_payload.reference_hash && Buffer.isBuffer(broadcast_payload.reference_hash)) {
+          this.myCurrentRevision = broadcast_payload.reference_hash;
+        }
+        //Use client to send to socketIO
+        broadcast_payload.reference_hash = Buffer.from(broadcast_payload.reference_hash).toString('base64');
+        broadcast_payload.reference.diff = Buffer.from(broadcast_payload.reference.diff).toString('base64');
+        if (broadcast_payload.reference.parents) {
+          broadcast_payload.reference.parents = broadcast_payload.reference.parents.map( (parent: Buffer) => parent ? Buffer.from(parent).toString('base64') : 'null');
+        };
+        // console.log("sync(); sending referenceh hash", broadcast_payload.reference_hash);
+        // console.log("sync(); sending broadcast payload");
+        // console.log(JSON.stringify(broadcast_payload));
+        this.socket.emit("broadcast", {roomId: this.languageName, signal: broadcast_payload});
+      }
+    } catch (e) {
+      console.error("PerspectiveDiffSync.sync(); got error", e);
+    } finally {
+      release();
+    }
+    await this.gossip();
+    return new PerspectiveDiff()
+  }
+
+  async gossip() {
+    this.gossipLogCount += 1;
+    let lostPeers: DID[] = [];
+
+    const release = await this.generalMutex.acquire();
+    try {
+      this.peers.forEach( (peerInfo, peer) => {
+        if (peerInfo.lastSeen.getTime() + 10000 < new Date().getTime()) {
+          lostPeers.push(peer);
+        }
+      });
+
+      for (const peer of lostPeers) {
+        this.peers.delete(peer);
+      }
+
+      // flatten the map into an array of peers
+      let peers = Array.from(this.peers.keys());
+      peers.push(this.me);
+      
+      // Lexically sort the peers
+      peers.sort();
+
+      // If we are the first peer, we are the scribe
+      let is_scribe = peers[0] == this.me;
+      
+      // Get a deduped set of all peer's current revisions
+      let revisions = new Set<Buffer>();
+      for(const peerInfo of this.peers.values()) {
+        if (peerInfo.currentRevision) revisions.add(peerInfo.currentRevision);
+      }
+
+      //Do checking on incoming gossip revisions and see if we have the same hash as the majority of the peers
+      //Get a copied array of revisions that are the same as mine
+      let sameRevisions;
+      //Get a copied array of revisions that are different than mine
+      let differentRevisions;
+
+      function generateRevisionStates(myCurrentRevision: Buffer) {
+        sameRevisions = revisions.size == 0 ? [] : Array.from(revisions).filter( (revision) => {
+          return myCurrentRevision && revision.equals(myCurrentRevision);
+        });
+        if (myCurrentRevision) {
+          sameRevisions.push(myCurrentRevision);
+        };
+        differentRevisions = revisions.size == 0 ? [] : Array.from(revisions).filter( (revision) => {
+          return myCurrentRevision && !revision.equals(myCurrentRevision);
+        });
+      }
+
+      async function checkSyncState(callback: SyncStateChangeObserver) {
+        if (sameRevisions.length > 0 || differentRevisions.length > 0) {
+          if (sameRevisions.length <= differentRevisions.length) {
+            await callback(PerspectiveState.LinkLanguageInstalledButNotSynced);
+          } else {
+            await callback(PerspectiveState.Synced);
+          };
+        }
+      }
+
+      //@ts-ignore
+      generateRevisionStates(this.myCurrentRevision);
+
+      //@ts-ignore
+      await checkSyncState(this.syncStateChangeCallback);
+
+      for (const hash of Array.from(revisions)) {
+        if(!hash) continue
+        if (this.myCurrentRevision && hash.equals(this.myCurrentRevision)) continue
+        console.log("Pulling with hash", hash);
+        let pullResult = await this.hcDna.call(DNA_NICK, ZOME_NAME, "pull", { 
+          hash,
+          is_scribe 
+        });
+        if (pullResult) {
+          if (pullResult.current_revision && Buffer.isBuffer(pullResult.current_revision)) {
+            let myRevision = pullResult.current_revision;
+            this.myCurrentRevision = myRevision;
+
+            //@ts-ignore
+            generateRevisionStates(this.myCurrentRevision);
+            //@ts-ignore
+            await checkSyncState(this.syncStateChangeCallback);
+          }
+        }
+      }
+
+      //Only show the gossip log every 10th iteration
+      if (this.gossipLogCount == 10) {
+        console.log(`
+        ======
+        GOSSIP
+        --
+        me: ${this.me}
+        is scribe: ${is_scribe}
+        --
+        ${Array.from(this.peers.entries()).map( ([peer, peerInfo]) => {
+          //@ts-ignore
+          return `${peer}: ${peerInfo.currentRevision.toString('base64')} ${peerInfo.lastSeen.toISOString()}\n`
+        })}
+        --
+        revisions: ${Array.from(revisions).map( (hash) => {
+          //@ts-ignore
+          return hash.toString('base64')
+        })}
+        `);
+        this.gossipLogCount = 0;
+      }
+    } catch (e) {
+      console.error("PerspectiveDiffSync.gossip(); got error", e);
+    } finally {
+      release();
+    }
+  }
+
+  async render(): Promise<Perspective> {
+    //@ts-ignore
+    let res = await this.hcDna.call(DNA_NICK, ZOME_NAME, "render", null);
+    return new Perspective(res.links);
+  }
+
+  async commit(diff: PerspectiveDiff): Promise<string> {
+    //console.log("PerspectiveDiffSync.commit(); Getting lock");
+    const release = await this.generalMutex.acquire();
+    try {
+      //console.log("PerspectiveDiffSync.commit(); Got lock");
+      let prep_diff = {
+        additions: diff.additions.map((diff) => prepareLinkExpression(diff)),
+        removals: diff.removals.map((diff) => prepareLinkExpression(diff))
+      }
+      let res = await this.hcDna.call(DNA_NICK, ZOME_NAME, "commit", prep_diff);
+      if (res && Buffer.isBuffer(res)) {
+        this.myCurrentRevision = res;
+      }
+      let broadcast_payload = await this.hcDna.call(DNA_NICK, ZOME_NAME, "get_broadcast_payload", null);
+      // console.log('commit got broadcast payload', broadcast_payload.referencence_hash);
+      // console.log("which has type", typeof broadcast_payload.reference_hash);
+      if (broadcast_payload) {
+        broadcast_payload.reference_hash = Buffer.from(broadcast_payload.reference_hash).toString('base64');
+        broadcast_payload.reference.diff = Buffer.from(broadcast_payload.reference.diff).toString('base64');
+        if (broadcast_payload.reference.parents) {
+          broadcast_payload.reference.parents = broadcast_payload.reference.parents.map( (parent: Buffer) => parent ? Buffer.from(parent).toString('base64') : 'null');
+        };
+        //console.log("commit sending referenceh hash", broadcast_payload.reference_hash);
+        this.socket.emit("broadcast", {roomId: this.languageName, signal: broadcast_payload});
+      }
+      return res as string;
+    } catch (e) {
+      console.error("PerspectiveDiffSync.commit(); got error", e);
+    } finally {
+      release();
+    }
+  }
+
+  addCallback(callback: PerspectiveDiffObserver): number {
+    this.linkCallback = callback;
+    return 1;
+  }
+
+  addSyncStateChangeCallback(callback: SyncStateChangeObserver): number {
+    this.syncStateChangeCallback = callback;
+    return 1;
+  }
+
+  async handleHolochainSignal(signal: any): Promise<void> {
+    let diff;
+    let reference_hash;
+    let reference;
+    let broadcast_author;
+    if (signal.payload) {
+      ({ diff, reference_hash, reference, broadcast_author } = signal.payload);
+    } else {
+      ({ diff, reference_hash, reference, broadcast_author } = signal);
+    }
+    // console.log("Setting a peer hash to", reference_hash);
+    // console.log(JSON.stringify(diff));
+    // console.log("Reference", JSON.stringify(reference));
+    // console.log(broadcast_author);
+    //Check if this signal came from another agent & contains a diff and reference_hash
+    if (diff && reference_hash && reference && broadcast_author) {
+      // console.log(`PerspectiveDiffSync.handleHolochainSignal: 
+      //       diff: ${JSON.stringify(diff)}
+      //       reference_hash: ${reference_hash.toString('base64')}
+      //       reference: {
+      //           diff: ${reference.diff?.toString('base64')}
+      //           parents: ${reference.parents ? reference.parents.map( (parent: Buffer) => parent ? parent.toString('base64') : 'null').join(', '):'none'}
+      //           diffs_since_snapshot: ${reference?.diffs_since_snapshot}
+      //       }
+      //       broadcast_author: ${broadcast_author}
+      //       `)
+      try {
+        //console.log("PerspectiveDiffSync.handleHolochainSignal: Getting lock");
+
+        //console.log("PerspectiveDiffSync.handleHolochainSignal: Got lock");
+        //const parsed = JSON.parse(reference_hash);
+        // console.log("Handle holochain signal parsed ref hash");
+        // console.log(JSON.stringify({
+        //   diff,
+        //   reference_hash,
+        //   reference,
+        //   broadcast_author
+        // }));
+        if (!Buffer.isBuffer(reference_hash)) {
+          reference_hash = Buffer.from(reference_hash, 'base64');
+        }
+        if (!Buffer.isBuffer(reference.diff)) {
+          reference.diff = Buffer.from(reference.diff, 'base64');
+        }
+        if (reference.parents) {
+          reference.parents = reference.parents.map( (parent: string) => parent == 'null' ? null : Buffer.from(parent, 'base64'));
+        }
+
+        await this.hcDna.call(DNA_NICK, ZOME_NAME, "handle_broadcast", {
+          diff,
+          reference_hash,
+          reference,
+          broadcast_author
+        });
+        this.peers.set(broadcast_author, { currentRevision: reference_hash, lastSeen: new Date() });
+      } catch (e) {
+        console.error("PerspectiveDiffSync.handleHolochainSignal: got error", e);
+      }
+    } else {
+      console.log("PerspectiveDiffSync.handleHolochainSignal: received a signals from ourselves in fast_forward_signal or in a pull: ", JSON.stringify(signal.payload));
+      //This signal only contains link data and no reference, and therefore came from us in a pull in fast_forward_signal
+      if (this.linkCallback) {
+        console.log("PerspectiveDiffSync.handleHolochainSignal: calling linkCallback");
+        await this.linkCallback(signal.payload);
+      }
+    }
+  }
+
+  async addActiveAgentLink(hcDna: HolochainLanguageDelegate): Promise<any> {
+    if (hcDna == undefined) {
+      console.warn("===Perspective-diff-sync: Error tried to add an active agent link but received no hcDna to add the link onto");
+    } else {
+      return await hcDna.call(
+        DNA_NICK,
+        ZOME_NAME,
+        "add_active_agent_link",
+        //@ts-ignore
+        null
+      );
+    }
+  }
+}
+
+function prepareLinkExpression(link: LinkExpression): object {
+  const data = Object.assign(link);
+  if (data.data.source == "") {
+    data.data.source = null;
+  }
+  if (data.data.target == "") {
+    data.data.target = null;
+  }
+  if (data.data.predicate == "") {
+    data.data.predicate = null;
+  }
+  if (data.data.source == undefined) {
+    data.data.source = null;
+  }
+  if (data.data.target == undefined) {
+    data.data.target = null;
+  }
+  if (data.data.predicate == undefined) {
+    data.data.predicate = null;
+  }
+  return data;
+}
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/package.json b/bootstrap-languages/p-diff-sync-socket-signaling/package.json
new file mode 100644
index 000000000..b615f2717
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/package.json
@@ -0,0 +1,43 @@
+{
+  "name": "@perspect3vism/perspective-diff-sync-socket-signaling",
+  "version": "0.6.0",
+  "description": "An AD4M language for syncing mutations to a share perspective",
+  "main": "index.js",
+  "scripts": {
+    "build-dna": "cd hc-dna && ./build.sh && cd ..",
+    "build": "run-script-os",
+    "build:linux": "yarn run build-dna && yarn run build-common",
+    "build:macos": "yarn run build-dna && yarn run build-common",
+    "build:windows": "cd hc-dna && powershell -ExecutionPolicy Bypass -File ./build.ps1 && cd .. && yarn run build-common",
+    "rollup-dna": "rollup -c rollup.config.hc-dna.js",
+    "build-common": "yarn run rollup-dna && deno run --allow-all esbuild.ts",
+    "integration-test": "node ../../test-runner/build/cli.js --test ./integration-test.js --bundle \"./build/bundle.js\" --meta '{\"name\":\"p-diff-sync\",\"description\":\"Holochain based language for sharing Perspectives\",\"sourceCodeLink\":\"https://github.com/perspect3vism/perspective-diff-sync\",\"possibleTemplateParams\":[\"uid\",\"name\"]}'"
+  },
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "@perspect3vism/ad4m": "*",
+    "@perspect3vism/ad4m-test": "*",
+    "@perspect3vism/rollup-plugin-dna": "^0.0.2",
+    "@rollup/plugin-commonjs": "^14.0.0",
+    "@rollup/plugin-json": "^4.1.0",
+    "@rollup/plugin-node-resolve": "^8.0.0",
+    "@rollup/plugin-typescript": "^4.0.0",
+    "@tsconfig/svelte": "^1.0.0",
+    "@types/node": "^18.0.0",
+    "faker": "^5.5.3",
+    "rollup": "^2.3.4",
+    "rollup-plugin-postcss": "^3.1.8",
+    "rollup-plugin-string": "^3.0.0",
+    "rollup-plugin-svelte": "^6.0.0",
+    "rollup-plugin-terser": "^7.0.0",
+    "svelte": "^3.0.0",
+    "svelte-check": "^1.0.0",
+    "svelte-preprocess": "^4.0.0",
+    "tslib": "^2.0.0",
+    "typescript": "^4.5.5"
+  },
+  "devDependencies": {
+    "run-script-os": "^1.1.6"
+  }
+}
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/rollup.config.hc-dna.js b/bootstrap-languages/p-diff-sync-socket-signaling/rollup.config.hc-dna.js
new file mode 100644
index 000000000..a1c1e1bbf
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/rollup.config.hc-dna.js
@@ -0,0 +1,71 @@
+import svelte from "rollup-plugin-svelte";
+import resolve from "@rollup/plugin-node-resolve";
+import commonjs from "@rollup/plugin-commonjs";
+//import { terser } from 'rollup-plugin-terser';
+import sveltePreprocess from "svelte-preprocess";
+import postcss from "rollup-plugin-postcss";
+import { string } from "rollup-plugin-string";
+import json from "@rollup/plugin-json";
+import dna from "@perspect3vism/rollup-plugin-dna";
+
+const production = !process.env.ROLLUP_WATCH;
+
+export default {
+  input: "dna.js",
+  external: [],
+  output: {
+    sourcemap: true,
+    format: "esm",
+    name: "PDiffSyncLanguage",
+    file: "build/dna.js",
+    interop: "esModule",
+    globals: {},
+  },
+  external: [],
+  plugins: [
+    string({
+      include: "build/*.js",
+    }),
+    svelte({
+      // enable run-time checks when not in production
+      dev: !production,
+      // we'll extract any component CSS out into
+      // a separate file - better for performance
+      //css: css => {
+      //	css.write('bundle.css');
+      //},
+      preprocess: sveltePreprocess(),
+    }),
+    // copy({
+    //     assets: ['package.unbundled.json']
+    // }),
+
+    // If you have external dependencies installed from
+    // npm, you'll most likely need these plugins. In
+    // some cases you'll need additional configuration -
+    // consult the documentation for details:
+    // https://github.com/rollup/plugins/tree/master/packages/commonjs
+    resolve({
+      browser: true,
+      dedupe: ["svelte"],
+    }),
+    commonjs(),
+    postcss({
+      extract: true,
+      minimize: true,
+      use: [
+        [
+          "sass",
+          {
+            includePaths: ["./src/ui/theme", "./node_modules"],
+          },
+        ],
+      ],
+    }),
+    json(),
+    dna(),
+  ],
+  watch: {
+    clearScreen: false,
+  },
+};
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/telepresenceAdapter.ts b/bootstrap-languages/p-diff-sync-socket-signaling/telepresenceAdapter.ts
new file mode 100644
index 000000000..9ae096da6
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/telepresenceAdapter.ts
@@ -0,0 +1,39 @@
+import type { TelepresenceAdapter, OnlineAgent, PerspectiveExpression, TelepresenceSignalCallback, HolochainLanguageDelegate, LanguageContext } from "https://esm.sh/@perspect3vism/ad4m@0.5.0";;
+import { DNA_NICK, ZOME_NAME } from "./build/dna.js";
+
+export class TelepresenceAdapterImplementation implements TelepresenceAdapter {
+    hcDna: HolochainLanguageDelegate;
+    signalCallbacks: TelepresenceSignalCallback[] = [];
+
+    constructor(context: LanguageContext) {
+        this.hcDna = context.Holochain as HolochainLanguageDelegate;
+    }
+
+    async setOnlineStatus(status: PerspectiveExpression): Promise<void> {
+        await this.hcDna.call(DNA_NICK, ZOME_NAME, "set_online_status", status);
+    }
+
+    async getOnlineAgents(): Promise<OnlineAgent[]> {
+        //@ts-ignore
+        const getActiveAgents = await this.hcDna.call(DNA_NICK, ZOME_NAME, "get_active_agents", null);
+        let calls = [];
+        for (const activeAgent of getActiveAgents) {
+            calls.push({dnaNick: DNA_NICK, zomeName: ZOME_NAME, fnName: "get_agents_status", params: activeAgent});
+        };
+        return await this.hcDna.callAsync(calls, 1000) as OnlineAgent[];
+    }
+
+    async sendSignal(remoteAgentDid: string, payload: PerspectiveExpression): Promise<object> {
+        let res = await this.hcDna.call(DNA_NICK, ZOME_NAME, "send_signal", {remote_agent_did: remoteAgentDid, payload});
+        return res;
+    }
+
+    async sendBroadcast(payload: PerspectiveExpression): Promise<object> {
+        let res = await this.hcDna.call(DNA_NICK, ZOME_NAME, "send_broadcast", payload);
+        return res;
+    }
+
+    async registerSignalCallback(callback: TelepresenceSignalCallback): Promise<void> {
+        this.signalCallbacks.push(callback);
+    }
+}
\ No newline at end of file
diff --git a/bootstrap-languages/p-diff-sync-socket-signaling/tsconfig.json b/bootstrap-languages/p-diff-sync-socket-signaling/tsconfig.json
new file mode 100644
index 000000000..132461b20
--- /dev/null
+++ b/bootstrap-languages/p-diff-sync-socket-signaling/tsconfig.json
@@ -0,0 +1,8 @@
+{
+  "extends": "@tsconfig/svelte/tsconfig.json",
+  "compilerOptions": {
+    "types": ["node"],
+  },
+  "include": ["*.ts"],
+  "exclude": ["node_modules/*", "__sapper__/*", "public/*"],
+}
\ No newline at end of file
diff --git a/bootstrap-languages/p-diff-sync/esbuild.ts b/bootstrap-languages/p-diff-sync/esbuild.ts
index e479a51dd..6f3bce43c 100644
--- a/bootstrap-languages/p-diff-sync/esbuild.ts
+++ b/bootstrap-languages/p-diff-sync/esbuild.ts
@@ -4,26 +4,9 @@ import * as esbuild from "https://deno.land/x/esbuild@v0.17.18/mod.js";
 // import * as esbuild from "https://deno.land/x/esbuild@v0.17.18/wasm.js";
 
 import { denoPlugins } from "https://deno.land/x/esbuild_deno_loader@0.7.0/mod.ts";
-import { loadSource, resolveUrl } from "./customHttpDownloader.js";
 
 const result = await esbuild.build({
-  plugins: [
-    {
-        name: `buffer-alias`,
-        setup(build) {
-            build.onResolve({ filter: new RegExp(`^buffer$`) }, (args) => {
-                return { path: `https://deno.land/std@0.177.0/node/buffer.ts`, namespace: 'imports' };
-            });
-
-            build.onResolve({filter: /.*/, namespace: 'imports'}, resolveUrl)
-
-            build.onLoad({filter: /.*/, namespace: 'imports'}, (args) => {
-                return loadSource(args)
-            })
-        },
-    },
-    ...denoPlugins()
-  ],
+  plugins: [...denoPlugins()],
   entryPoints: ['index.ts'],
   outfile: 'build/bundle.js',
   bundle: true,
diff --git a/bootstrap-languages/p-diff-sync/hc-dna/zomes/perspective_diff_sync/src/lib.rs b/bootstrap-languages/p-diff-sync/hc-dna/zomes/perspective_diff_sync/src/lib.rs
index e837a592b..7e03bab91 100644
--- a/bootstrap-languages/p-diff-sync/hc-dna/zomes/perspective_diff_sync/src/lib.rs
+++ b/bootstrap-languages/p-diff-sync/hc-dna/zomes/perspective_diff_sync/src/lib.rs
@@ -63,12 +63,6 @@ pub fn sync(_: ()) -> ExternResult<Option<Hash>> {
         .map_err(|error| utils::err(&format!("{}", error)))
 }
 
-#[hdk_extern]
-pub fn get_broadcast_payload(_: ()) -> ExternResult<Option<HashBroadcast>> {
-    link_adapter::commit::get_broadcast_payload::<retriever::HolochainRetreiver>()
-        .map_err(|error| utils::err(&format!("{}", error)))
-}
-
 #[hdk_extern]
 pub fn pull(args: PullArguments) -> ExternResult<PullResult> {
     link_adapter::pull::pull::<retriever::HolochainRetreiver>(true, args.hash, args.is_scribe)
@@ -101,7 +95,6 @@ fn recv_remote_signal(signal: SerializedBytes) -> ExternResult<()> {
     //Check if its a normal diff expression signal
     match HashBroadcast::try_from(signal.clone()) {
         Ok(broadcast) => {
-            debug!("Received broadcast: {:?} in HOLOCHAIN", broadcast);
             link_adapter::pull::handle_broadcast::<retriever::HolochainRetreiver>(broadcast)
                 .map_err(|err| utils::err(&format!("{}", err)))?;
         }
@@ -115,13 +108,6 @@ fn recv_remote_signal(signal: SerializedBytes) -> ExternResult<()> {
     Ok(())
 }
 
-#[hdk_extern]
-pub fn handle_broadcast(broadcast: HashBroadcast) -> ExternResult<()> {
-    link_adapter::pull::handle_broadcast::<retriever::HolochainRetreiver>(broadcast)
-        .map_err(|err| utils::err(&format!("{}", err)))?;
-    Ok(())
-}
-
 // Telepresence implementation
 
 #[hdk_extern]
diff --git a/bootstrap-languages/p-diff-sync/hc-dna/zomes/perspective_diff_sync/src/link_adapter/commit.rs b/bootstrap-languages/p-diff-sync/hc-dna/zomes/perspective_diff_sync/src/link_adapter/commit.rs
index 6dd6f9392..e9897391c 100644
--- a/bootstrap-languages/p-diff-sync/hc-dna/zomes/perspective_diff_sync/src/link_adapter/commit.rs
+++ b/bootstrap-languages/p-diff-sync/hc-dna/zomes/perspective_diff_sync/src/link_adapter/commit.rs
@@ -88,15 +88,15 @@ pub fn commit<Retriever: PerspectiveDiffRetreiver>(
     );
     update_current_revision::<Retriever>(diff_entry_reference.clone(), now)?;
 
-    // if *ENABLE_SIGNALS {
-    //     // let signal_data = PerspectiveDiffReference {
-    //     //     diff,
-    //     //     reference: diff_entry_ref_entry,
-    //     //     reference_hash: diff_entry_reference.clone(),
-    //     // };
-    //     // send_revision_signal(signal_data)?;
-    //     broadcast_current::<Retriever>()?;
-    // };
+    if *ENABLE_SIGNALS {
+        // let signal_data = PerspectiveDiffReference {
+        //     diff,
+        //     reference: diff_entry_ref_entry,
+        //     reference_hash: diff_entry_reference.clone(),
+        // };
+        // send_revision_signal(signal_data)?;
+        broadcast_current::<Retriever>()?;
+    };
 
     let after_fn_end = get_now()?.time();
     debug!(
@@ -150,22 +150,3 @@ pub fn broadcast_current<Retriever: PerspectiveDiffRetreiver>() -> SocialContext
     };
     Ok(current.map(|rev| rev.hash))
 }
-
-pub fn get_broadcast_payload<Retriever: PerspectiveDiffRetreiver>() -> SocialContextResult<Option<HashBroadcast>> {
-    match current_revision::<Retriever>()? {
-        Some(current) => {
-            let current_revision = current;
-            let entry_ref =
-                Retriever::get::<PerspectiveDiffEntryReference>(current_revision.hash.clone())?;
-            let diff = Retriever::get::<PerspectiveDiff>(entry_ref.diff.clone())?;
-
-            Ok(Some(HashBroadcast {
-                reference: entry_ref,
-                reference_hash: current_revision.hash.clone(),
-                diff,
-                broadcast_author: get_my_did()?.unwrap(),
-            }))
-        },
-        None => Ok(None)
-    }
-}
diff --git a/bootstrap-languages/p-diff-sync/hc-dna/zomes/perspective_diff_sync/src/link_adapter/pull.rs b/bootstrap-languages/p-diff-sync/hc-dna/zomes/perspective_diff_sync/src/link_adapter/pull.rs
index 9059b9b32..5897c3435 100644
--- a/bootstrap-languages/p-diff-sync/hc-dna/zomes/perspective_diff_sync/src/link_adapter/pull.rs
+++ b/bootstrap-languages/p-diff-sync/hc-dna/zomes/perspective_diff_sync/src/link_adapter/pull.rs
@@ -232,7 +232,7 @@ pub fn handle_broadcast<Retriever: PerspectiveDiffRetreiver>(
             emit_signal(broadcast.diff.clone())?;
         };
     };
-    //emit_signal(broadcast)?;
+    emit_signal(broadcast)?;
     // let fn_end = get_now()?.time();
     // debug!("===PerspectiveDiffSync.fast_forward_signal() - Profiling: Took: {} to complete fast_forward_signal() function", (fn_end - fn_start).num_milliseconds());
     Ok(())
diff --git a/bootstrap-languages/p-diff-sync/index.ts b/bootstrap-languages/p-diff-sync/index.ts
index 92625a1d5..1f57856ad 100644
--- a/bootstrap-languages/p-diff-sync/index.ts
+++ b/bootstrap-languages/p-diff-sync/index.ts
@@ -10,14 +10,11 @@ function interactions(expression: Address): Interaction[] {
 //!@ad4m-template-variable
 const name = "perspective-diff-sync";
 
-//!@ad4m-template-variable
-const uid = "perspective-diff-sync-uuid";
-
 export default async function create(context: LanguageContext): Promise<Language> {
   const Holochain = context.Holochain as HolochainLanguageDelegate;
   const agent = context.agent as AgentService;
 
-  const linksAdapter = new LinkAdapter(context, uid);
+  const linksAdapter = new LinkAdapter(context);
   const telepresenceAdapter = new TelepresenceAdapterImplementation(context);
 
   await Holochain.registerDNAs(
diff --git a/bootstrap-languages/p-diff-sync/linksAdapter.ts b/bootstrap-languages/p-diff-sync/linksAdapter.ts
index 3701d6607..62e09db15 100644
--- a/bootstrap-languages/p-diff-sync/linksAdapter.ts
+++ b/bootstrap-languages/p-diff-sync/linksAdapter.ts
@@ -3,7 +3,6 @@ import { LinkSyncAdapter, PerspectiveDiffObserver, HolochainLanguageDelegate, La
 import type { SyncStateChangeObserver } from "https://esm.sh/@perspect3vism/ad4m@0.5.0";
 import { Mutex, withTimeout } from "https://esm.sh/async-mutex@0.4.0";
 import { DNA_NICK, ZOME_NAME } from "./build/dna.js";
-import { io } from "https://esm.sh/socket.io-client@4.7.2";
 
 class PeerInfo {
   //@ts-ignore
@@ -21,40 +20,11 @@ export class LinkAdapter implements LinkSyncAdapter {
   me: DID
   gossipLogCount: number = 0;
   myCurrentRevision: Buffer | null = null;
-  languageName: String | null = null;
-  socket: any;
 
-  constructor(context: LanguageContext, name: String) {
+  constructor(context: LanguageContext) {
     //@ts-ignore
     this.hcDna = context.Holochain as HolochainLanguageDelegate;
     this.me = context.agent.did;
-    this.languageName = name;
-    this.socket = io("https://socket.ad4m.dev", { transports: ['websocket', 'polling'], autoConnect: true });
-    console.log("Created socket connection");
-    this.socket.on('error', (error: any) => {
-      console.error('Error:', error);
-    });
-    this.socket.on('connect', () => {
-      console.log('Connected to the server');
-      try {
-        this.socket.emit("join-room", this.languageName);
-        console.log("Sent the join-room signal");
-      } catch (e) {
-        console.error("Error in socket connection: ", e);
-      }
-    });
-    this.socket.on("signal", (signal: any) => {
-      this.handleHolochainSignal(signal);
-    });
-    this.socket.on('disconnect', () => {
-      console.log('Disconnected from the server');
-    });
-    this.socket.on('connect_error', (error) => {
-      console.error('Connection Error:', error);
-    });
-    this.socket.on('reconnect_attempt', () => {
-      console.log('Trying to reconnect...');
-    });
   }
 
   writable(): boolean {
@@ -82,21 +52,9 @@ export class LinkAdapter implements LinkSyncAdapter {
     //console.log("PerspectiveDiffSync.sync(); Got lock");
     try {
       //@ts-ignore
-      let broadcast_payload = await this.hcDna.call(DNA_NICK, ZOME_NAME, "get_broadcast_payload", null);
-      if (broadcast_payload) {
-        if (broadcast_payload.reference_hash && Buffer.isBuffer(broadcast_payload.reference_hash)) {
-          this.myCurrentRevision = broadcast_payload.reference_hash;
-        }
-        //Use client to send to socketIO
-        broadcast_payload.reference_hash = Buffer.from(broadcast_payload.reference_hash).toString('base64');
-        broadcast_payload.reference.diff = Buffer.from(broadcast_payload.reference.diff).toString('base64');
-        if (broadcast_payload.reference.parents) {
-          broadcast_payload.reference.parents = broadcast_payload.reference.parents.map( (parent: Buffer) => parent ? Buffer.from(parent).toString('base64') : 'null');
-        };
-        // console.log("sync(); sending referenceh hash", broadcast_payload.reference_hash);
-        // console.log("sync(); sending broadcast payload");
-        // console.log(JSON.stringify(broadcast_payload));
-        this.socket.emit("broadcast", {roomId: this.languageName, signal: broadcast_payload});
+      let current_revision = await this.hcDna.call(DNA_NICK, ZOME_NAME, "sync", null);
+      if (current_revision && Buffer.isBuffer(current_revision)) {
+        this.myCurrentRevision = current_revision; 
       }
     } catch (e) {
       console.error("PerspectiveDiffSync.sync(); got error", e);
@@ -176,7 +134,6 @@ export class LinkAdapter implements LinkSyncAdapter {
       for (const hash of Array.from(revisions)) {
         if(!hash) continue
         if (this.myCurrentRevision && hash.equals(this.myCurrentRevision)) continue
-        console.log("Pulling with hash", hash);
         let pullResult = await this.hcDna.call(DNA_NICK, ZOME_NAME, "pull", { 
           hash,
           is_scribe 
@@ -241,18 +198,6 @@ export class LinkAdapter implements LinkSyncAdapter {
       if (res && Buffer.isBuffer(res)) {
         this.myCurrentRevision = res;
       }
-      let broadcast_payload = await this.hcDna.call(DNA_NICK, ZOME_NAME, "get_broadcast_payload", null);
-      // console.log('commit got broadcast payload', broadcast_payload.referencence_hash);
-      // console.log("which has type", typeof broadcast_payload.reference_hash);
-      if (broadcast_payload) {
-        broadcast_payload.reference_hash = Buffer.from(broadcast_payload.reference_hash).toString('base64');
-        broadcast_payload.reference.diff = Buffer.from(broadcast_payload.reference.diff).toString('base64');
-        if (broadcast_payload.reference.parents) {
-          broadcast_payload.reference.parents = broadcast_payload.reference.parents.map( (parent: Buffer) => parent ? Buffer.from(parent).toString('base64') : 'null');
-        };
-        //console.log("commit sending referenceh hash", broadcast_payload.reference_hash);
-        this.socket.emit("broadcast", {roomId: this.languageName, signal: broadcast_payload});
-      }
       return res as string;
     } catch (e) {
       console.error("PerspectiveDiffSync.commit(); got error", e);
@@ -272,19 +217,7 @@ export class LinkAdapter implements LinkSyncAdapter {
   }
 
   async handleHolochainSignal(signal: any): Promise<void> {
-    let diff;
-    let reference_hash;
-    let reference;
-    let broadcast_author;
-    if (signal.payload) {
-      ({ diff, reference_hash, reference, broadcast_author } = signal.payload);
-    } else {
-      ({ diff, reference_hash, reference, broadcast_author } = signal);
-    }
-    // console.log("Setting a peer hash to", reference_hash);
-    // console.log(JSON.stringify(diff));
-    // console.log("Reference", JSON.stringify(reference));
-    // console.log(broadcast_author);
+    const { diff, reference_hash, reference, broadcast_author } = signal.payload;
     //Check if this signal came from another agent & contains a diff and reference_hash
     if (diff && reference_hash && reference && broadcast_author) {
       // console.log(`PerspectiveDiffSync.handleHolochainSignal: 
@@ -301,39 +234,14 @@ export class LinkAdapter implements LinkSyncAdapter {
         //console.log("PerspectiveDiffSync.handleHolochainSignal: Getting lock");
 
         //console.log("PerspectiveDiffSync.handleHolochainSignal: Got lock");
-        //const parsed = JSON.parse(reference_hash);
-        // console.log("Handle holochain signal parsed ref hash");
-        // console.log(JSON.stringify({
-        //   diff,
-        //   reference_hash,
-        //   reference,
-        //   broadcast_author
-        // }));
-        if (!Buffer.isBuffer(reference_hash)) {
-          reference_hash = Buffer.from(reference_hash, 'base64');
-        }
-        if (!Buffer.isBuffer(reference.diff)) {
-          reference.diff = Buffer.from(reference.diff, 'base64');
-        }
-        if (reference.parents) {
-          reference.parents = reference.parents.map( (parent: string) => parent == 'null' ? null : Buffer.from(parent, 'base64'));
-        }
-
-        await this.hcDna.call(DNA_NICK, ZOME_NAME, "handle_broadcast", {
-          diff,
-          reference_hash,
-          reference,
-          broadcast_author
-        });
         this.peers.set(broadcast_author, { currentRevision: reference_hash, lastSeen: new Date() });
       } catch (e) {
         console.error("PerspectiveDiffSync.handleHolochainSignal: got error", e);
       }
     } else {
-      console.log("PerspectiveDiffSync.handleHolochainSignal: received a signals from ourselves in fast_forward_signal or in a pull: ", JSON.stringify(signal.payload));
+      //console.log("PerspectiveDiffSync.handleHolochainSignal: received a signals from ourselves in fast_forward_signal or in a pull: ", signal.payload);
       //This signal only contains link data and no reference, and therefore came from us in a pull in fast_forward_signal
       if (this.linkCallback) {
-        console.log("PerspectiveDiffSync.handleHolochainSignal: calling linkCallback");
         await this.linkCallback(signal.payload);
       }
     }
diff --git a/bootstrap-languages/p-diff-sync/package.json b/bootstrap-languages/p-diff-sync/package.json
index e10f1e6c7..b5c18527e 100644
--- a/bootstrap-languages/p-diff-sync/package.json
+++ b/bootstrap-languages/p-diff-sync/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@perspect3vism/perspective-diff-sync",
-  "version": "0.6.0",
+  "version": "0.6.1-prerelease",
   "description": "An AD4M language for syncing mutations to a share perspective",
   "main": "index.js",
   "scripts": {
diff --git a/cli/seed_proto.json b/cli/seed_proto.json
index e261ea2c2..a158a5c9d 100644
--- a/cli/seed_proto.json
+++ b/cli/seed_proto.json
@@ -4,11 +4,20 @@
         {
             "meta": {
                 "name": "perspectiveDiffSync",
-                "description": "Holochain based Perspective link sharing language, with revision signals sent with socket.io",
+                "description": "Holochain based Perspective link sharing language",
                 "sourceCodeLink": "https://github.com/perspect3vism/perspective-diff-sync",
                 "possibleTemplateParams": ["uid", "name", "description"]
             },
             "resource": "../bootstrap-languages/p-diff-sync/build/bundle.js"
+        },
+        {
+            "meta": {
+                "name": "perspectiveDiffSync",
+                "description": "Holochain based Perspective link sharing language, with revision signals sent with socket.io",
+                "sourceCodeLink": "https://github.com/perspect3vism/perspective-diff-sync",
+                "possibleTemplateParams": ["uid", "name", "description"]
+            },
+            "resource": "../bootstrap-languages/p-diff-sync-socket-signaling/build/bundle.js"
         }
     ],
     "agentLanguage": {
diff --git a/turbo.json b/turbo.json
index 7047c342d..31955bc8a 100644
--- a/turbo.json
+++ b/turbo.json
@@ -13,7 +13,7 @@
       "dependsOn": ["@perspect3vism/perspective-diff-sync#build", "@perspect3vism/agent-language#build", 
         "@perspect3vism/direct-message-language#build", "@perspect3vism/perspective-language#build", 
         "@perspect3vism/language-language#build", "@perspect3vism/neighbourhood-language#build",
-        "@perspect3vism/file-storage#build"],
+        "@perspect3vism/file-storage#build", "@perspect3vism/perspective-diff-sync-socket-signaling#build"],
       "outputs": ["dist/**", "lib/**", "build/**"]
     },