workflows/ci: Also build packages

.github/workflows/ci.yml

@@ -7,6 +7,7 @@ jobs:
   parse-flake:
     runs-on: ubuntu-latest
     outputs:
+      packages: ${{ steps.packages.outputs.packages }}
       checks: ${{ steps.checks.outputs.checks }}
       servers: ${{ steps.servers.outputs.servers }}
       workstations: ${{ steps.workstations.outputs.workstations }}
@@ -15,6 +16,11 @@ jobs:
       - uses: cachix/install-nix-action@v31
         with:
           extra_nix_config: experimental-features = nix-command flakes pipe-operators
+      - name: Get packages
+        id: packages
+        run: |
+          packages=$(nix flake show --json | jq -c '.packages."x86_64-linux" | keys')
+          printf "packages=%s" "$packages" >> "$GITHUB_OUTPUT"
       - name: Get checks
         id: checks
         run: |
@@ -38,6 +44,25 @@ jobs:
             |> builtins.filter (name: !configs.${name}.config.custom.services.comin.enable)
           ' --json)
           printf "workstations=%s" "$workstations" >> "$GITHUB_OUTPUT"
+  build-package:
+    needs: parse-flake
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        package: ${{ fromJson(needs.parse-flake.outputs.packages) }}
+    steps:
+      - uses: actions/checkout@v5
+      - uses: cachix/install-nix-action@v31
+        with:
+          extra_nix_config: experimental-features = nix-command flakes pipe-operators
+      - uses: cachix/cachix-action@v15
+        with:
+          name: sebastian-stork
+          authToken: "${{ secrets.CACHIX_AUTH_TOKEN }}"
+          useDaemon: false
+      - name: Build package
+        run: nix build .#packages.x86_64-linux.${{ matrix.package }} --print-build-logs
   build-check:
     needs: parse-flake
     runs-on: ubuntu-latest