Adds new github actions workflow with cachix

.github/workflows/nix-github-actions.yml

@@ -0,0 +1,36 @@
+name: Nix Flake actions
+
+on:
+  pull_request:
+  push:
+    branches:
+      - master
+      - main
+
+jobs:
+  nix-matrix:
+    runs-on: ubuntu-latest
+    outputs:
+      matrix: ${{ steps.set-matrix.outputs.matrix }}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: cachix/install-nix-action@v23
+      - id: set-matrix
+        name: Generate Nix Matrix
+        run: |
+          set -Eeu
+          echo "matrix=$(nix eval --json '.#githubActions.matrix')" >> "$GITHUB_OUTPUT"
+
+  nix-build:
+    needs: nix-matrix
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix: ${{fromJSON(needs.nix-matrix.outputs.matrix)}}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: cachix/install-nix-action@v23
+      - uses: cachix/cachix-action@v12
+        with:
+          name: willemml
+          authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'      
+      - run: nix build -L ".#${{ matrix.attr }}"

flake.lock

@@ -234,6 +234,26 @@
         "type": "github"
       }
     },
+    "nix-github-actions": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1698974481,
+        "narHash": "sha256-yPncV9Ohdz1zPZxYHQf47S8S0VrnhV7nNhCawY46hDA=",
+        "owner": "nix-community",
+        "repo": "nix-github-actions",
+        "rev": "4bb5e752616262457bc7ca5882192a564c0472d2",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "nix-github-actions",
+        "type": "github"
+      }
+    },
     "nix-index-database": {
       "inputs": {
         "nixpkgs": [
@@ -406,6 +426,7 @@
         "flake-parts": "flake-parts",
         "home-manager": "home-manager",
         "hyprland": "hyprland",
+        "nix-github-actions": "nix-github-actions",
         "nix-index-database": "nix-index-database",
         "nixos-apple-silicon": "nixos-apple-silicon",
         "nixpkgs": "nixpkgs_3",

flake.nix

@@ -27,20 +27,24 @@
 
     nix-index-database.url = "github:Mic92/nix-index-database";
     nix-index-database.inputs.nixpkgs.follows = "nixpkgs";
+
+    nix-github-actions.url = "github:nix-community/nix-github-actions";
+    nix-github-actions.inputs.nixpkgs.follows = "nixpkgs";
   };
 
   outputs = {
+    darwin,
     flake-parts,
     home-manager,
+    nix-github-actions,
     nixpkgs,
     pre-commit-hooks,
-    darwin,
     self,
     ...
   } @ inputs: let
     globals = import ./common/globals.nix;
   in
-    inputs.flake-parts.lib.mkFlake {inherit inputs;} {
+    inputs.flake-parts.lib.mkFlake {inherit inputs;} rec {
       imports = [
         ./flake/home-manager.nix
         ./flake/overlays.nix
@@ -77,6 +81,7 @@
             config
           ];
         });
+        forAllSystems = nixpkgs.lib.genAttrs systems;
       in {
         nixosConfigurations.x86_64-live = mkNixos "x86_64" ./nixos/hosts/x86_64-live.nix;
         nixosConfigurations.aarch64-live = mkNixos "aarch64" ./nixos/hosts/aarch64-live.nix;
@@ -88,15 +93,19 @@
 
         darwinConfigurations.zeus = mkDarwin "aarch64" ./nixos/hosts/zeus.nix;
 
-        homeConfigurations.willem-aarch64-darwin = mkHome "aarch64-darwin" ./home/darwin/default.nix;
+        homeConfigurations = forAllSystems (system: {willem = mkHome system ./home/${builtins.replaceStrings ["aarch64-" "x86_64-"] ["" ""] system}/default.nix;});
-
-        packages.aarch64-darwin.home = self.homeConfigurations.willem-aarch64-darwin.activationPackage;
 
         packages.aarch64-darwin.minimal-vm = self.nixosConfigurations.darwin-arm-minimal-vm.config.system.build.vm;
         packages.aarch64-darwin.homeconsole-vm = self.nixosConfigurations.darwin-arm-homeconsole-vm.config.system.build.vm;
 
         packages.x86_64-linux.live-image = self.nixosConfigurations.x86_64-live.config.system.build.isoImage;
         packages.aarch64-linux.live-image = self.nixosConfigurations.x86_64-live.config.system.build.isoImage;
+
+        checks.x86_64-linux.nixbox = self.nixosConfigurations.nixbox.config.system.build.topLevel;
+
+        githubActions = nix-github-actions.lib.mkGithubMatrix {
+          checks = nixpkgs.lib.getAttrs ["x86_64-linux" "x86_64-darwin"] self.checks;
+        };
       };
 
       perSystem = {
@@ -113,6 +122,10 @@
           };
         };
 
+        checks.home = self'.packages.home;
+
+        packages.home = self.homeConfigurations.${system}.willem.activationPackage;
+
         devShells.default = pkgs.mkShell {
           inherit (self'.checks.pre-commit-check) shellHook;
         };