diff --git a/.envrc b/.envrc
new file mode 100644
index 000000000..3550a30f2
--- /dev/null
+++ b/.envrc
@@ -0,0 +1 @@
+use flake
diff --git a/.github/workflows/ci-nix.yml b/.github/workflows/ci-nix.yml
new file mode 100644
index 000000000..d260cfc7e
--- /dev/null
+++ b/.github/workflows/ci-nix.yml
@@ -0,0 +1,24 @@
+name: CI - Nix
+on:
+  pull_request:
+    paths:
+      - '.github/workflows/ci-nix.yml'
+      - '*.nix'
+      - 'flake.*'
+  schedule:
+    # Every 10:42 JST
+    # https://docs.github.com/en/actions/using-workflows/events-that-trigger-workflows#schedule
+    - cron: '42 1 * * *'
+  workflow_dispatch:
+
+jobs:
+  tasks:
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+    steps:
+      - uses: actions/checkout@v3
+      - uses: DeterminateSystems/nix-installer-action@v4
+      - uses: DeterminateSystems/magic-nix-cache-action@v2
+      - run: nix flake check
+      - run: nix develop --command echo 'This step should be done before any other "nix develop" steps because of measuring Nix build time'
+      - run: nix develop --command make all
diff --git a/.gitignore b/.gitignore
index a5619002a..c70e08458 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@ public
 .DS_Store
 **/.hugo_build.lock
 tmp
+.direnv/
diff --git a/.vscode/extensions.json b/.vscode/extensions.json
new file mode 100644
index 000000000..e3e1ebbc7
--- /dev/null
+++ b/.vscode/extensions.json
@@ -0,0 +1,10 @@
+{
+  "recommendations": [
+    "golang.go",
+    "github.vscode-github-actions",
+    "editorconfig.editorconfig",
+    "tekumara.typos-vscode",
+    "dprint.dprint",
+    "jnoortheen.nix-ide",
+  ]
+}
diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 000000000..56d988dcd
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,10 @@
+{
+  "editor.defaultFormatter": "dprint.dprint",
+  "editor.formatOnSave": true,
+  "[nix]": {
+    "editor.defaultFormatter": "jnoortheen.nix-ide"
+  },
+  "[go]": {
+    "editor.defaultFormatter": "golang.go"
+  }
+}
diff --git a/flake.lock b/flake.lock
new file mode 100644
index 000000000..f2d223598
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,61 @@
+{
+  "nodes": {
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1689068808,
+        "narHash": "sha256-6ixXo3wt24N/melDWjq70UuHQLxGV8jZvooRanIHXw0=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "919d646de7be200f3bf08cb76ae1f09402b6f9b4",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1689446868,
+        "narHash": "sha256-OXc/8/QdT0sjxwg38MmQu3mUgpZ+S6LQSAuUs0LGHW0=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "7fd307937db70af23b956c4539033542809ae263",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "7fd307937db70af23b956c4539033542809ae263",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 000000000..f97b00738
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,29 @@
+{
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/7fd307937db70af23b956c4539033542809ae263";
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs = { self, nixpkgs, flake-utils }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        pkgs = nixpkgs.legacyPackages.${system};
+      in
+      {
+        devShells.default = with pkgs;
+          mkShell {
+            buildInputs = [
+              hugo
+              go_1_20
+              gnumake
+              coreutils
+              peco
+              typos
+              dprint
+              actionlint
+              nil
+              nixpkgs-fmt
+            ];
+          };
+      });
+}