Add CI build for macOS

.github/workflows/build.yaml

@@ -16,12 +16,12 @@ jobs:
     steps:
       - uses: actions/checkout@v3
 
+      - uses: DeterminateSystems/flake-checker-action@main
+
       - uses: DeterminateSystems/nix-installer-action@main
 
       - uses: DeterminateSystems/magic-nix-cache-action@main
 
-      - uses: DeterminateSystems/flake-checker-action@main
-
       - name: "Nix formatting"
         run: git ls-files '*.nix' | nix develop --command xargs nixpkgs-fmt --check
 
@@ -32,7 +32,7 @@ jobs:
         run: nix develop --command cargo clippy --all-targets --all-features --  -Dwarnings
 
       - name: "Nix Flake Check"
-        run: nix flake check --print-build-logs
+        run: nix flake check --all-systems --print-build-logs
 
       - name: Build package
         run: "nix build .# -L --fallback"
@@ -44,3 +44,23 @@ jobs:
           name: flakehub-push-X64-Linux
           path: result/bin/flakehub-push
           retention-days: 1
+
+  # For local development purposes
+  build-artifacts-macos:
+    runs-on: ${{ matrix.systems.runner }}
+    strategy:
+      matrix:
+        systems:
+          - nix-system: aarch64-darwin
+            runner: macos-latest-xlarge
+          - nix-system: x86_64-darwin
+            runner: macos-12
+    steps:
+      - uses: actions/checkout@v3
+
+      - uses: DeterminateSystems/nix-installer-action@main
+
+      - uses: DeterminateSystems/magic-nix-cache-action@main
+
+      - name: Build package
+        run: "nix build .# -L --fallback"