diff --git a/.github/actions/build_nix/action.yml b/.github/actions/build_nix/action.yml
new file mode 100644
index 0000000..c39d7c9
--- /dev/null
+++ b/.github/actions/build_nix/action.yml
@@ -0,0 +1,84 @@
+name: Build/Cache Nix
+description: Builds default devShell for a platform, caching the results (if applicable)
+inputs:
+  cachix_cache:
+    description: "The name of the Cachix cache to download to and/or upload from"
+    required: true
+    default: "openlane"
+  cachix_token:
+    description: "An authentication token for Cachix"
+    required: false
+    default: ""
+  shell:
+    description: "Shell to use"
+    required: true
+    default: "bash"
+  nix_system:
+    description: "The nix platform string to build for"
+    required: true
+    default: "x86_64-linux"
+  local_cache_key:
+    description: Key to use for the cache
+    required: false
+    default: ""
+  run_tests:
+    description: Whether to run unit tests and the smoke test
+    required: false
+    default: "false"
+runs:
+  using: "composite"
+  steps:
+    - id: cache
+      name: Cache Derivation
+      uses: actions/cache@v3
+      with:
+        key: ${{ inputs.local_cache_key }}-${{ inputs.nix_system }}
+        path: /tmp/${{ inputs.local_cache_key }}
+    - id: Build
+      name: Build
+      shell: ${{ inputs.shell }}
+      run: |
+        substituters='https://${{ inputs.cachix_cache }}.cachix.org https://cache.nixos.org'
+        if [ '${{ inputs.local_cache_key }}' = '' ]; then
+          substituters="file:///tmp/${{ inputs.local_cache_key }} $substituters"
+        fi
+        echo "#################################################################"
+        outPath=$(nix build\
+          --print-out-paths\
+          --no-link\
+          --accept-flake-config\
+          --option system ${{ inputs.nix_system }}\
+          --extra-platforms ${{ inputs.nix_system }}\
+          --option substituters "$substituters"\
+          .#devShells.${{ inputs.nix_system }}.default)
+        echo "out-path=$outPath" >> $GITHUB_OUTPUT
+        sudo du -hs /nix/store/* | sort -h | tail -n 20
+    - name: Unit/Step Tests
+      shell: ${{ inputs.shell }}
+      if: inputs.run_tests == 'true'
+      run: echo TODO
+    - name: Smoke Test
+      shell: ${{ inputs.shell }}
+      if: inputs.run_tests == 'true'
+      run: |
+        echo "#################################################################"
+        nix run\
+          --option system ${{ inputs.nix_system }}\
+          --extra-platforms ${{ inputs.nix_system }}\
+          --accept-flake-config\
+          .#packages.${{ inputs.nix_system }}.cace -- --help
+    - name: Push to local cache
+      shell: ${{ inputs.shell }}
+      if: inputs.local_cache_key != '' && steps.cache.outputs.cache-hit != 'true'
+      run: |
+        nix copy\
+          --to 'file:///tmp/${{ inputs.local_cache_key }}?compression=zstd&parallel-compression=true'\
+          ${{ steps.build.outputs.out-path }}
+    - name: Install + Push to Cachix
+      shell: ${{ inputs.shell }}
+      if: ${{ inputs.cachix_token != '' }}
+      run: |
+        echo "#################################################################"
+        nix-env -iA cachix -f https://cachix.org/api/v1/install
+        cachix authtoken ${{ inputs.cachix_token }}
+        cachix push ${{ inputs.cachix_cache }} ${{ steps.build.outputs.out-path }}
diff --git a/.github/actions/check_space/action.yml b/.github/actions/check_space/action.yml
new file mode 100644
index 0000000..b34312f
--- /dev/null
+++ b/.github/actions/check_space/action.yml
@@ -0,0 +1,22 @@
+name: Check Space
+description: Reusable step that prints disk usage information
+runs:
+  using: "composite"
+  steps:
+    - name: Check Space
+      shell: bash
+      run: |
+        if test -d /nix/store; then
+          sudo du -hs /nix/store/* | sort -h | tail -n 10
+        fi
+        echo ===============
+        df -h
+        echo ===============
+        du -hs ~/* | sort -h
+        echo ===============
+        du -hs * | sort -h
+        echo ===============
+        du -hs /home/runner/runners/* | sort -h
+        echo ===============
+        du -hs /home/runner/work/* | sort -h
+        echo ===============
diff --git a/.github/actions/setup_env/action.yml b/.github/actions/setup_env/action.yml
new file mode 100644
index 0000000..a5ac222
--- /dev/null
+++ b/.github/actions/setup_env/action.yml
@@ -0,0 +1,28 @@
+name: Set up environment
+description: Sets up a number of environment variables that are useful for publishing
+runs:
+  using: "composite"
+  steps:
+    - name: Export Repo URL
+      shell: bash
+      run: echo "REPO_URL=https://github.com/${{ github.repository }}.git" >> $GITHUB_ENV
+
+    - name: Export Branch Name
+      shell: bash
+      run: echo "BRANCH_NAME=${GITHUB_REF##*/}" >> $GITHUB_ENV
+
+    - name: Set default for env.NEW_TAG
+      shell: bash
+      run: echo "NEW_TAG=NO_NEW_TAG" >> $GITHUB_ENV
+
+    - name: Check for new version
+      if: ${{ github.event_name == 'push' && env.BRANCH_NAME == 'main' }}
+      shell: bash
+      run: |
+        python3 ./.github/scripts/generate_tag.py
+
+    - name: Publish
+      if: ${{ github.event_name == 'push' && env.BRANCH_NAME == 'main' && env.NEW_TAG != 'NO_NEW_TAG' }}
+      shell: bash
+      run: |
+        echo "PUBLISH=1" >> $GITHUB_ENV
diff --git a/.github/workflows/ci_nix.yml b/.github/workflows/ci_nix.yml
new file mode 100644
index 0000000..f05ab5c
--- /dev/null
+++ b/.github/workflows/ci_nix.yml
@@ -0,0 +1,285 @@
+name: CI-Nix
+
+# Events that trigger workflow
+on:
+  # Runs on all pushes to branches
+  push:
+  # Runs on all PRs
+  pull_request:
+  # Runs every day at midnight UTC
+  schedule:
+    - cron: "0 0 * * *"
+  # Manual Dispatch
+  workflow_dispatch:
+
+jobs:
+  prepare-pdks:
+    name: Cache PDKs
+    runs-on: ubuntu-22.04
+    outputs:
+      opdks_rev: ${{ steps.set-rev.outputs.opdks_rev }}
+    steps:
+      - uses: actions/checkout@v3
+      - name: Python Dependencies
+        run: |
+          python3 -m pip install -r ./requirements.txt
+      - name: Get Open PDKs Revision
+        id: set-rev
+        run: |
+          echo "opdks_rev=$(cat ./cace/open_pdks_rev)" >> $GITHUB_OUTPUT
+      - name: Cache sky130 PDK
+        uses: actions/cache@v3
+        with:
+          path: ${{ github.workspace }}/.volare-sky130
+          key: cache-sky130-pdk-${{ steps.set-rev.outputs.opdks_rev }}
+      - name: Enable sky130 PDK
+        run: |
+          export GITHUB_TOKEN=${{ secrets.GITHUB_TOKEN }}
+          volare enable --pdk sky130 --pdk-root ${{ github.workspace }}/.volare-sky130 ${{ steps.set-rev.outputs.opdks_rev }}
+      - name: Cache gf180mcu PDK
+        uses: actions/cache@v3
+        with:
+          path: ${{ github.workspace }}/.volare-gf180mcu
+          key: cache-gf180mcu-pdk-${{ steps.set-rev.outputs.opdks_rev }}
+      - name: Enable gf180mcu PDK
+        run: |
+          export GITHUB_TOKEN=${{ secrets.GITHUB_TOKEN }}
+          volare enable --pdk gf180mcu --pdk-root ${{ github.workspace }}/.volare-gf180mcu ${{ steps.set-rev.outputs.opdks_rev }}
+      - name: Checkout submodules
+        uses: actions/checkout@v3
+        with:
+          submodules: true
+  lint:
+    name: Lint
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Check out repo
+        uses: actions/checkout@v3
+      - name: Set Up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: "3.8"
+      - name: Install Dependencies
+        run: make dependencies
+      - name: Lint
+        run: |
+          make lint
+  build-py:
+    runs-on: ubuntu-22.04
+    needs: [lint, prepare-pdks]
+    strategy:
+      matrix:
+        python-version: ["3.8", "3.9", "3.10"]
+      fail-fast: false
+    name: Build and Unit Test (Python ${{ matrix.python-version }})
+    steps:
+      - name: Check out repo
+        uses: actions/checkout@v3
+      - name: Set Up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Cache sky130 PDK
+        id: cache-sky130-pdk
+        uses: actions/cache@v3
+        with:
+          path: ${{ github.workspace }}/.volare-sky130
+          key: cache-sky130-pdk-${{ needs.prepare-pdks.outputs.opdks_rev }}
+      - name: Enable sky130 PDK
+        if: steps.cache-sky130-pdk.outputs.cache-hit != 'true'
+        run: |
+          pip3 install -r ./requirements.txt
+          export GITHUB_TOKEN=${{ secrets.GITHUB_TOKEN }}
+          volare enable --pdk sky130 --pdk-root ${{ github.workspace }}/.volare-sky130 ${{ needs.prepare-pdks.outputs.opdks_rev }}
+      - name: Run Unit Tests
+        run: echo TODO
+  build-linux-amd64:
+    needs: lint
+    runs-on: ubuntu-22.04
+    name: Build (Nix on Linux/amd64)
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up GITHUB_TOKEN
+        run: |
+          echo "GITHUB_TOKEN=${{ secrets.GITHUB_TOKEN }}" >> $GITHUB_ENV
+      - name: Install Nix
+        run: |
+          sh <(curl -L https://nixos.org/nix/install) --yes --daemon --nix-extra-conf-file /dev/stdin <<EXTRA_NIX_CONF
+          extra-experimental-features = nix-command flakes
+          extra-substituters = https://openlane.cachix.org
+          extra-trusted-public-keys = openlane.cachix.org-1:qqdwh+QMNGmZAuyeQJTH9ErW57OWSvdtuwfBKdS254E=
+          EXTRA_NIX_CONF
+
+          . '/nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh'
+          echo "PATH=$PATH" >> $GITHUB_ENV
+      - name: Build with Nix
+        uses: ./.github/actions/build_nix
+        with:
+          nix_system: x86_64-linux
+          local_cache_key: derivation-${{ github.run_id }}
+          cachix_cache: ${{ vars.CACHIX_CACHE || 'openlane' }}
+          cachix_token: "${{ secrets.CACHIX_TOKEN }}"
+          run_tests: "true"
+  build-linux-aarch64:
+    needs: lint
+    runs-on: ubuntu-22.04
+    name: Build (Nix on Linux/aarch64)
+    steps:
+      - uses: docker/setup-qemu-action@v1
+      - uses: actions/checkout@v3
+      - name: Set up GITHUB_TOKEN
+        run: |
+          echo "GITHUB_TOKEN=${{ secrets.GITHUB_TOKEN }}" >> $GITHUB_ENV
+      - uses: DeterminateSystems/nix-installer-action@main # Using the DS Nix installer because it also sets up binfmt
+      - name: Build with Nix
+        uses: ./.github/actions/build_nix
+        with:
+          nix_system: aarch64-linux
+          local_cache_key: derivation-${{ github.run_id }}
+          cachix_cache: ${{ vars.CACHIX_CACHE || 'openlane' }}
+          cachix_token: "${{ secrets.CACHIX_TOKEN }}"
+          run_tests: "true"
+  build-mac-amd64:
+    needs: lint
+    runs-on: macos-12
+    name: Build (Nix on macOS/amd64)
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up GITHUB_TOKEN
+        run: |
+          echo "GITHUB_TOKEN=${{ secrets.GITHUB_TOKEN }}" >> $GITHUB_ENV
+      - name: Install Nix
+        run: |
+          sh <(curl -L https://nixos.org/nix/install) --yes --nix-extra-conf-file /dev/stdin <<EXTRA_NIX_CONF
+          extra-experimental-features = nix-command flakes
+          extra-substituters = https://openlane.cachix.org
+          extra-trusted-public-keys = openlane.cachix.org-1:qqdwh+QMNGmZAuyeQJTH9ErW57OWSvdtuwfBKdS254E=
+          EXTRA_NIX_CONF
+
+          . '/nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh'
+          echo "PATH=$PATH" >> $GITHUB_ENV
+      - name: Build with Nix
+        uses: ./.github/actions/build_nix
+        with:
+          nix_system: x86_64-darwin
+          local_cache_key: derivation-${{ github.run_id }}
+          cachix_cache: ${{ vars.CACHIX_CACHE || 'openlane' }}
+          cachix_token: "${{ secrets.CACHIX_TOKEN }}"
+          shell: "zsh {0}"
+          run_tests: "true"
+  build-docker:
+    runs-on: ubuntu-22.04
+    strategy:
+      matrix:
+        arch: ["amd64", "aarch64"]
+    needs: [build-linux-amd64, build-linux-aarch64]
+    name: Build Docker Image (${{ matrix.arch }})
+    steps:
+      - name: Maximize build space
+        uses: easimon/maximize-build-space@master
+        with:
+          remove-dotnet: "true"
+          remove-android: "true"
+          remove-haskell: "true"
+          remove-codeql: "true"
+          remove-docker-images: "true"
+          root-reserve-mb: 20480
+      - name: Check out repo
+        uses: actions/checkout@v3
+
+      - uses: docker/setup-qemu-action@v1
+      - name: Set Nix System
+        run: |
+          nix_system=x86_64-linux
+          if [ "${{ matrix.arch }}" == "aarch64" ]; then
+            nix_system=aarch64-linux
+          fi
+          echo "NIX_SYSTEM=$nix_system" >> $GITHUB_ENV
+      - uses: DeterminateSystems/nix-installer-action@main
+      - name: Build with Nix
+        uses: ./.github/actions/build_nix
+        with:
+          nix_system: ${{ env.NIX_SYSTEM }}
+          local_cache_key: derivation-${{ github.run_id }}
+          cachix_cache: ${{ vars.CACHIX_CACHE || 'openlane' }}
+
+      - name: Build Docker Image
+        run: |
+          IMAGE_PATH=$(nix build\
+            --print-out-paths\
+            --no-link\
+            --accept-flake-config\
+            --option system ${{ env.NIX_SYSTEM }}\
+            --extra-platforms ${{ env.NIX_SYSTEM }}\
+            .#packages.${{ env.NIX_SYSTEM }}.cace-docker)
+          echo "IMAGE_PATH=$IMAGE_PATH" >> $GITHUB_ENV
+          cat $IMAGE_PATH | docker load
+      - name: Set Up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: "3.8"
+      - name: Install Dependencies
+        run: make dependencies
+      # Do not cache the PDK. We want to test the typical Docker flow here.
+      - name: Smoke-Test Docker Image
+        run: echo TODO
+      - name: Upload Docker Artifact
+        uses: actions/upload-artifact@v3
+        with:
+          name: docker-image-${{ matrix.arch }}
+          path: ${{ env.IMAGE_PATH }}
+  test:
+    runs-on: ubuntu-22.04
+    needs: [build-linux-amd64, prepare-pdks]
+    name: Test Design ${{ matrix.test_name }} (${{ matrix.pdk }})
+    strategy:
+      fail-fast: false
+      matrix:
+        test_name: ["test"]
+        pdk: ["sky130A"]
+        pdk_family: ["sky130"]
+    steps:
+      - name: Maximize build space
+        uses: easimon/maximize-build-space@master
+        with:
+          remove-dotnet: "true"
+          remove-android: "true"
+          remove-haskell: "true"
+          remove-codeql: "true"
+          remove-docker-images: "true"
+          root-reserve-mb: 20480
+      - uses: actions/checkout@v3
+        with:
+          submodules: recursive
+      - name: Check if Git
+        run: |
+          git status || true
+          tree .git || true
+
+      - uses: DeterminateSystems/nix-installer-action@main
+
+      - name: Build with Nix
+        uses: ./.github/actions/build_nix
+        with:
+          nix_system: x86_64-linux
+          local_cache_key: derivation-${{ github.run_id }}
+          cachix_cache: ${{ vars.CACHIX_CACHE || 'openlane' }}
+
+      - name: Check Nix
+        run: |
+          sudo du -hs /nix/store/* | sort -h | tail -n 10
+          sudo tree /nix/store/*-openlane2 || true
+      - name: Cache PDKs
+        id: cache-pdks
+        uses: actions/cache@v3
+        with:
+          path: ${{ github.workspace }}/.volare-${{ matrix.pdk_family }}
+          key: cache-${{ matrix.pdk_family }}-pdk-${{ needs.prepare-pdks.outputs.opdks_rev }}
+
+      - name: Enable PDKs
+        if: steps.cache-pdks.outputs.cache-hit != 'true'
+        run: |
+          pip3 install -r ./requirements.txt
+          volare enable --pdk ${{ matrix.pdk_family }} \
+            --pdk-root ${{ github.workspace }}/.volare-${{ matrix.pdk_family }} \
+            ${{ needs.prepare-pdks.outputs.opdks_rev }}
diff --git a/cace/open_pdks_rev b/cace/open_pdks_rev
new file mode 100644
index 0000000..49ce447
--- /dev/null
+++ b/cace/open_pdks_rev
@@ -0,0 +1 @@
+4d5af10bfee4dab799566aaf903bb22aee69bac9
diff --git a/default.nix b/default.nix
new file mode 100644
index 0000000..b27765f
--- /dev/null
+++ b/default.nix
@@ -0,0 +1,99 @@
+# Copyright 2024 Efabless Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+{
+  lib,
+  nix-gitignore,
+  buildPythonPackage,
+  setuptools,
+  setuptools_scm,
+
+  # Tools
+  klayout,
+  klayout-pymod,
+  magic,
+  netgen,
+  volare,
+  octave,
+  xschem,
+  ngspice,
+  
+  # PIP
+  matplotlib,
+  numpy,
+  pillow,
+  tkinter,
+}:
+buildPythonPackage rec {
+  name = "cace";
+  format = "pyproject";
+
+  version_file = builtins.readFile ./cace/__version__.py;
+  version_list = builtins.match ''.+''\n__version__ = '([^']+)'.+''\n.+''$'' version_file;
+  version = builtins.head version_list;
+
+  src = [
+    ./README.md
+    ./pyproject.toml
+    (nix-gitignore.gitignoreSourcePure "__pycache__" ./cace)
+    ./requirements.txt
+  ];
+  
+  unpackPhase = ''
+    echo $src
+    for file in $src; do
+      BASENAME=$(python3 -c "import os; print('$file'.split('-', maxsplit=1)[1], end='$EMPTY')")
+      cp -r $file $PWD/$BASENAME
+    done
+    ls -lah
+  '';
+
+  buildInputs = [
+    setuptools
+    setuptools_scm
+  ];
+  
+  includedTools = [
+    klayout
+    magic
+    netgen
+    octave
+    ngspice
+    xschem
+  ];
+
+  propagatedBuildInputs = [
+    # Python
+    matplotlib
+    numpy
+    pillow
+    volare
+    tkinter
+  ]
+  ++ includedTools;
+  
+  computed_PATH = lib.makeBinPath propagatedBuildInputs;
+
+  # Make PATH available to OpenLane subprocesses
+  makeWrapperArgs = [
+    "--prefix PATH : ${computed_PATH}"
+  ];
+
+  meta = with lib; {
+    description = "Circuit Automatic Characterization Engine";
+    homepage = "https://github.com/efabless/cace";
+    license = licenses.asl20;
+    mainProgram = "cace";
+    platforms = platforms.linux ++ platforms.darwin;
+  };
+}
diff --git a/flake.lock b/flake.lock
new file mode 100644
index 0000000..689881b
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,80 @@
+{
+  "nodes": {
+    "flake-compat": {
+      "locked": {
+        "narHash": "sha256-kvjfFW7WAETZlt09AgDn1MrtKzP7t90Vf7vypd3OL1U=",
+        "rev": "0f9255e01c2351cc7d116c072cb317785dd33b33",
+        "revCount": 57,
+        "type": "tarball",
+        "url": "https://api.flakehub.com/f/pinned/edolstra/flake-compat/1.0.1/018afb31-abd1-7bff-a5e4-cff7e18efb7a/source.tar.gz"
+      },
+      "original": {
+        "type": "tarball",
+        "url": "https://flakehub.com/f/edolstra/flake-compat/1.tar.gz"
+      }
+    },
+    "nix-eda": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      },
+      "locked": {
+        "lastModified": 1715762084,
+        "narHash": "sha256-ho3bgzv4DnahsMrMIYIk8dVIyp35+oEzCx18p27BmSc=",
+        "owner": "efabless",
+        "repo": "nix-eda",
+        "rev": "facd74ff9583bc876b608aaa17e6fa6ab7a7ba7b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "efabless",
+        "repo": "nix-eda",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "narHash": "sha256-C36QmoJd5tdQ5R9MC1jM7fBkZW9zBUqbUCsgwS6j4QU=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "c1be43e8e837b8dbee2b3665a007e761680f0c3d",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-23.11",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-compat": "flake-compat",
+        "nix-eda": "nix-eda",
+        "volare": "volare"
+      }
+    },
+    "volare": {
+      "inputs": {
+        "nixpkgs": [
+          "nix-eda",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1715167549,
+        "narHash": "sha256-QzMKToqiDQzMjBM2TW1VGMUxSLj70Uk4IdJVjIdkd5c=",
+        "owner": "efabless",
+        "repo": "volare",
+        "rev": "b72ce150b80f67278d4c6b025183fb3941cab993",
+        "type": "github"
+      },
+      "original": {
+        "owner": "efabless",
+        "repo": "volare",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..10c50d6
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,90 @@
+# Copyright 2024 Efabless Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+{
+  nixConfig = {
+    extra-substituters = [
+      "https://openlane.cachix.org"
+    ];
+    extra-trusted-public-keys = [
+      "openlane.cachix.org-1:qqdwh+QMNGmZAuyeQJTH9ErW57OWSvdtuwfBKdS254E="
+    ];
+  };
+
+  inputs = {
+    nix-eda.url = github:efabless/nix-eda;
+    volare.url = github:efabless/volare;
+    flake-compat.url = "https://flakehub.com/f/edolstra/flake-compat/1.tar.gz";
+  };
+
+  inputs.volare.inputs.nixpkgs.follows = "nix-eda/nixpkgs";
+
+  outputs = {
+    self,
+    nix-eda,
+    volare,
+    ...
+  }: let
+    package-config = {
+      current = self;
+      withInputs = [nix-eda volare];
+    };
+  in {
+    # Helper functions
+    createCaceShell = import ./nix/create-shell.nix;
+
+    # Outputs
+    packages = nix-eda.forAllSystems package-config (util:
+      with util;
+        rec {
+          colab-env = callPackage ./nix/colab-env.nix {};
+          cace = callPythonPackage ./default.nix {};
+          default = cace;
+        }
+        // (pkgs.lib.optionalAttrs (pkgs.stdenv.isLinux) {cace-docker = callPackage ./nix/docker.nix {createDockerImage = nix-eda.createDockerImage;};}));
+
+    devShells = nix-eda.forAllSystems package-config (
+      util:
+        with util; rec {
+          default =
+            callPackage (self.createCaceShell {
+              }) {};
+          notebook = callPackage (self.createCaceShell {
+            extra-packages = with pkgs; [
+              jupyter
+            ];
+          }) {};
+          dev = callPackage (self.createCaceShell {
+            extra-packages = with pkgs; [
+            ];
+            extra-python-packages = with pkgs.python3.pkgs; [
+              setuptools
+              build
+              twine
+              black # blue
+            ];
+          }) {};
+          docs = callPackage (self.createCaceShell {
+            extra-packages = with pkgs; [
+            ];
+            extra-python-packages = with pkgs.python3.pkgs; [
+              sphinx
+              myst-parser
+              furo
+              sphinx-autobuild
+            ];
+          }) {};
+        }
+    );
+  };
+}
diff --git a/nix/colab-env.nix b/nix/colab-env.nix
new file mode 100644
index 0000000..c42d588
--- /dev/null
+++ b/nix/colab-env.nix
@@ -0,0 +1,23 @@
+# Copyright 2024 Efabless Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+{
+  system,
+  cace,
+  python3,
+  symlinkJoin,
+}:
+symlinkJoin {
+  name = "cace-colab-env";
+  paths = cace.includedTools;
+}
diff --git a/nix/create-shell.nix b/nix/create-shell.nix
new file mode 100644
index 0000000..4a130aa
--- /dev/null
+++ b/nix/create-shell.nix
@@ -0,0 +1,63 @@
+# Copyright 2024 Efabless Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+{
+  extra-packages ? [],
+  extra-python-packages ? []
+}: ({
+  lib,
+  cace,
+  git,
+  zsh,
+  delta,
+  neovim,
+  gtkwave,
+  coreutils,
+  graphviz,
+  python3,
+  mkShell,
+}: let
+  cace-env = (
+    python3.withPackages (pp:
+      with pp;
+        [
+          cace
+        ]
+        ++ extra-python-packages)
+  );
+  cace-env-sitepackages = "${cace-env}/${cace-env.sitePackages}";
+in
+  mkShell {
+    name = "cace-shell";
+
+    propagatedBuildInputs =
+      [
+        cace-env
+
+        # Conveniences
+        git
+        zsh
+        delta
+        neovim
+        gtkwave
+        coreutils
+        graphviz
+      ]
+      ++ extra-packages
+      ++ cace.includedTools;
+
+    PYTHONPATH = "${cace-env-sitepackages}"; # Allows venvs to work properly
+    shellHook = ''
+      export PS1="\n\[\033[1;32m\][nix-shell:\w]\$\[\033[0m\] ";
+    '';
+  })
diff --git a/nix/docker.nix b/nix/docker.nix
new file mode 100644
index 0000000..de90a64
--- /dev/null
+++ b/nix/docker.nix
@@ -0,0 +1,82 @@
+# Copyright 2024 Efabless Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+{
+  createDockerImage,
+  dockerTools,
+  system,
+  pkgs,
+  lib,
+  python3,
+  cace,
+  git,
+  neovim,
+  zsh,
+  silver-searcher,
+  coreutils,
+}: let
+  # # We're fetchurl-ing this one so we don't want to use a fixed-output derivation
+  # # like fetchFromGitHub
+  # # See https://nixos.org/manual/nix/stable/language/import-from-derivation
+  # nix-docker-image-script = builtins.fetchurl {
+  #   url = "https://raw.githubusercontent.com/NixOS/nix/master/docker.nix";
+  #   sha256 = "sha256:0kpj0ms09v7ss86cayf3snpsl6pnjgjzk5wcsfp16ggvr2as80ai";
+  # };
+  cace-env = python3.withPackages (ps: with ps; [cace]);
+  cace-env-sitepackages = "${cace-env}/${cace-env.sitePackages}";
+  cace-env-bin = "${cace-env}/bin";
+in
+  createDockerImage {
+    inherit pkgs;
+    inherit lib;
+    name = "cace";
+    tag = "tmp-${system}";
+    extraPkgs = with dockerTools; [
+      git
+      zsh
+      neovim
+      silver-searcher
+
+      cace-env
+    ];
+    nixConf = {
+      extra-experimental-features = "nix-command flakes repl-flake";
+    };
+    maxLayers = 2;
+    channelURL = "https://nixos.org/channels/nixos-23.11";
+
+    image-created = "now";
+    image-extraCommands = ''
+      mkdir -p ./etc
+      cat <<HEREDOC > ./etc/zshrc
+      autoload -U compinit && compinit
+      autoload -U promptinit && promptinit && prompt suse && setopt prompt_sp
+      autoload -U colors && colors
+
+      export PS1=$'%{\033[31m%}CACE Container (${cace.version})%{\033[0m%}:%{\033[32m%}%~%{\033[0m%}%% ';
+      HEREDOC
+    '';
+    image-config-cmd = ["${zsh}/bin/zsh"];
+    image-config-extra-env = [
+      "LANG=C.UTF-8"
+      "LC_ALL=C.UTF-8"
+      "LC_CTYPE=C.UTF-8"
+      "EDITOR=nvim"
+      "PYTHONPATH=${cace-env-sitepackages}"
+      "TMPDIR=/tmp"
+    ];
+    image-config-extra-path = [
+      "${cace-env-bin}"
+      "${cace.computed_PATH}"
+    ];
+  }
diff --git a/requirements.txt b/requirements.txt
index 1ecc395..82f3a80 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,4 @@
 matplotlib>=3.6.0
 numpy>=1.20.0
 pillow>=10.1.0
+volare>=0.16.0
diff --git a/shell.nix b/shell.nix
new file mode 100644
index 0000000..d7c46b9
--- /dev/null
+++ b/shell.nix
@@ -0,0 +1,14 @@
+(
+  import
+  (
+    let
+      lock = builtins.fromJSON (builtins.readFile ./flake.lock);
+    in
+      fetchTarball {
+        url = lock.nodes.flake-compat.locked.url or "https://github.com/edolstra/flake-compat/archive/${lock.nodes.flake-compat.locked.rev}.tar.gz";
+        sha256 = lock.nodes.flake-compat.locked.narHash;
+      }
+  )
+  {src = ./.;}
+)
+.shellNix