Move nix CI jobs to separate workflow

.github/workflows/build.yml

@@ -227,29 +227,3 @@ jobs:
           name: ${{ env.CONSOLE_DOCKER_IMAGE }}.tar.gz
           path: ./${{ env.CONSOLE_DOCKER_IMAGE }}.tar.gz
           if-no-files-found: error
-
-  build_bencher_nix:
-    name: Build `bencher` Nix Package
-    if: ${{ !inputs.deploy-only }}
-    runs-on: ubuntu-22.04
-    steps:
-      - uses: actions/checkout@v6
-      - name: Install Nix
-        uses: cachix/install-nix-action@v25
-        with:
-          nix_path: nixpkgs=channel:nixos-25.11
-      - name: Nix build
-        run: nix build .#bencher
-
-  build_api_nix:
-    name: Build `api` Nix Package
-    if: ${{ !inputs.deploy-only }}
-    runs-on: ubuntu-22.04
-    steps:
-      - uses: actions/checkout@v6
-      - name: Install Nix
-        uses: cachix/install-nix-action@v25
-        with:
-          nix_path: nixpkgs=channel:nixos-25.11
-      - name: Nix build
-        run: nix build .#api

.github/workflows/ci.yml

@@ -95,6 +95,7 @@ jobs:
       # https://doc.rust-lang.org/nightly/rustc/platform-support.html#tier-1-with-host-tools
       glibc-version: "2.17"
       check-cli: ${{ needs.changes.outputs.cli == 'true' || github.ref == 'refs/heads/devel' }}
+      is-fork: ${{ github.event_name == 'pull_request' && github.event.pull_request.head.repo.full_name != github.repository }}
       build-cli: ${{ needs.changes.outputs.cli == 'true' || github.ref == 'refs/heads/devel' || startsWith(github.ref, 'refs/tags/') }}
       build-docker: ${{ startsWith(github.ref, 'refs/tags/') }}
     secrets:

.github/workflows/cli.yml

@@ -21,6 +21,9 @@ on:
       check-cli:
         type: boolean
         required: true
+      is-fork:
+        type: boolean
+        required: true
       build-cli:
         type: boolean
         required: true
@@ -86,7 +89,7 @@ jobs:
 
   script_gen:
     name: Script Gen
-    if: ${{ inputs.check-cli }}
+    if: ${{ inputs.check-cli && !inputs.is-fork }}
     strategy:
       fail-fast: false
       matrix:
@@ -105,7 +108,7 @@ jobs:
 
   script_gen_version:
     name: Script Gen Version
-    if: ${{ inputs.check-cli }}
+    if: ${{ inputs.check-cli && !inputs.is-fork }}
     strategy:
       fail-fast: false
       matrix:

.github/workflows/lint.yml

@@ -108,19 +108,3 @@ jobs:
         run: |
           npm install --include=dev
           npx biome ci --formatter-enabled false --organize-imports-enabled false .
-
-  nix_lints:
-    name: Check nix code
-    runs-on: ubuntu-22.04
-    steps:
-      - uses: actions/checkout@v6
-      - name: Install Nix
-        uses: cachix/install-nix-action@v25
-        with:
-          nix_path: nixpkgs=channel:nixos-25.11
-      - name: Check nix formatting
-        run: nix develop .#ci --command alejandra --check .
-      - name: Check nix lints
-        run: nix develop .#ci --command statix check
-      - name: Check for dead nix code
-        run: nix develop .#ci --command deadnix

.github/workflows/nix.yml

@@ -0,0 +1,91 @@
+name: Nix
+
+on:
+  workflow_dispatch:
+  push:
+    branches: [devel, cloud]
+    tags: [v**]
+  pull_request:
+    branches: [main, cloud, devel]
+
+# Cancel in-progress runs for the same branch
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  changes:
+    name: Detect Changes
+    if: github.ref != 'refs/heads/cloud'
+    runs-on: ubuntu-22.04
+    outputs:
+      nix: ${{ steps.filter.outputs.nix }}
+      cli: ${{ steps.filter.outputs.cli }}
+      api: ${{ steps.filter.outputs.api }}
+    steps:
+      - uses: actions/checkout@v6
+      - uses: dorny/paths-filter@v3
+        id: filter
+        with:
+          filters: |
+            nix:
+              - 'flake.nix'
+              - 'flake.lock'
+              - '.github/workflows/nix.yml'
+            cli:
+              - 'Cargo.toml'
+              - 'Cargo.lock'
+              - 'lib/**'
+              - 'services/cli/**'
+            api:
+              - 'Cargo.toml'
+              - 'Cargo.lock'
+              - 'lib/**'
+              - 'plus/**'
+              - 'services/api/**'
+
+  nix_lints:
+    name: Check nix code
+    needs: changes
+    if: ${{ needs.changes.outputs.nix == 'true' }}
+    runs-on: ubuntu-22.04
+    steps:
+      - uses: actions/checkout@v6
+      - name: Install Nix
+        uses: cachix/install-nix-action@v25
+        with:
+          nix_path: nixpkgs=channel:nixos-25.11
+      - name: Check nix formatting
+        run: nix develop .#ci --command alejandra --check .
+      - name: Check nix lints
+        run: nix develop .#ci --command statix check
+      - name: Check for dead nix code
+        run: nix develop .#ci --command deadnix
+
+  build_bencher_nix:
+    name: Build `bencher` Nix Package
+    needs: changes
+    if: ${{ needs.changes.outputs.nix == 'true' || needs.changes.outputs.cli == 'true' }}
+    runs-on: ubuntu-22.04
+    steps:
+      - uses: actions/checkout@v6
+      - name: Install Nix
+        uses: cachix/install-nix-action@v25
+        with:
+          nix_path: nixpkgs=channel:nixos-25.11
+      - name: Nix build
+        run: nix build .#bencher
+
+  build_api_nix:
+    name: Build `api` Nix Package
+    needs: changes
+    if: ${{ needs.changes.outputs.nix == 'true' || needs.changes.outputs.api == 'true' }}
+    runs-on: ubuntu-22.04
+    steps:
+      - uses: actions/checkout@v6
+      - name: Install Nix
+        uses: cachix/install-nix-action@v25
+        with:
+          nix_path: nixpkgs=channel:nixos-25.11
+      - name: Nix build
+        run: nix build .#api

CLAUDE.md

@@ -18,6 +18,8 @@ Bencher is a continuous benchmarking platform that detects and prevents performa
 
 Version control uses Jujutsu (`jj`) with Git.
 
+- Do **NOT** add `Co-Authored-By` lines to commit messages
+
 ## Development Methodology
 
 - Practice test-driven development (TDD)