Add darwin-system template

.github/workflows/template-darwin-system.yaml

@@ -0,0 +1,24 @@
+name: "Template test: darwin-system"
+on:
+  push:
+    paths:
+      - .github/workflows/template-darwin-system.yaml
+      - templates/darwin-system/*
+
+jobs:
+  binary-cache:
+    permissions:
+      contents: write
+    runs-on: macos-latest
+    steps:
+    - uses: "actions/checkout@v4"
+    - uses: "DeterminateSystems/nix-installer-action@main"
+    - uses: cachix/cachix-action@v14
+      with:
+        name: luke-channings
+        authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
+    - name: Build packages
+      run: |
+        export NIXPKGS_ALLOW_UNFREE=1
+        nix flake new -t .#darwin-system darwin-system
+        nix run --flake ./darwin-system#activate

templates/darwin-system/.gitignore

@@ -0,0 +1,6 @@
+.DS_Store
+.devenv
+.direnv
+.vscode
+.env
+result

templates/darwin-system/configuration.nix

@@ -0,0 +1,35 @@
+{ inputs, ... }:
+let
+  inherit (builtins) attrValues;
+  inherit (inputs) dotfiles nix-darwin;
+in
+{
+  flake.darwinConfigurations.default = nix-darwin.lib.darwinSystem {
+    system = "aarch64-darwin";
+
+    inherit inputs;
+
+    modules = [
+      (dotfiles.lib.configureOsModules {
+        osModules = attrValues dotfiles.modules.darwin;
+        homeModules = attrValues dotfiles.modules.homeModules;
+      })
+      (
+        let
+          username = "luke";
+        in
+        { ... }:
+        {
+          users = {
+            knownUsers = [ username ];
+
+            users.${username} = {
+              home = "/Users/${username}";
+              uid = 502;
+            };
+          };
+        }
+      )
+    ];
+  };
+}

templates/darwin-system/devenv.nix

@@ -0,0 +1,64 @@
+{ inputs, ... }:
+{
+  imports = [
+    inputs.devenv.flakeModule
+    inputs.treefmt-nix.flakeModule
+  ];
+
+  perSystem =
+    {
+      config,
+      pkgs,
+      lib,
+      system,
+      ...
+    }:
+    {
+      treefmt = {
+        projectRoot = ./.;
+        projectRootFile = "flake.nix";
+
+        programs.nixfmt.enable = true;
+        programs.deadnix.enable = true;
+        programs.biome = {
+          enable = true;
+          settings.formatter.indentStyle = "space";
+        };
+      };
+
+      devenv.shells.default = {
+        devenv.root =
+          let
+            devenvRootFileContent = builtins.readFile inputs.devenv-root.outPath;
+          in
+          pkgs.lib.mkIf (devenvRootFileContent != "") devenvRootFileContent;
+
+        imports = [ inputs.toolbox.modules.devenv.vscode-workspace ];
+
+        packages = with pkgs; [
+          nixVersions.latest
+        ];
+
+        vscode-workspace = {
+          extensions = with inputs.vscode-extensions.extensions.${system}.vscode-marketplace; [
+            jnoortheen.nix-ide
+            ibecker.treefmt-vscode
+          ];
+
+          settings = {
+            nix = {
+              enableLanguageServer = true;
+              serverPath = lib.getExe pkgs.nil;
+            };
+
+            treefmt = {
+              command = lib.getExe config.treefmt.package;
+              config = config.treefmt.build.configFile;
+            };
+
+            editor.defaultFormatter = "ibecker.treefmt-vscode";
+          };
+        };
+      };
+    };
+}

templates/darwin-system/flake.nix

@@ -0,0 +1,54 @@
+{
+  description = "Configuration for Luke's CAIS MacBook Pro";
+
+  inputs = {
+    devenv-root = {
+      url = "file+file:///dev/null";
+      flake = false;
+    };
+    dotfiles.url = "github:lukechannings/dotfiles";
+    dotfiles.inputs.devenv-root.follows = "devenv-root";
+  };
+
+  outputs =
+    inputs@{ dotfiles, self, ... }:
+    let
+      inputs' = dotfiles.inputs // inputs;
+    in
+    inputs'.flake-parts.lib.mkFlake { inputs = inputs'; } {
+      imports = [
+        ./devenv.nix
+        ./configuration.nix
+      ];
+
+      systems = [
+        "aarch64-darwin"
+        "x86_64-darwin"
+
+        "x86_64-linux"
+        "aarch64-linux"
+      ];
+
+      perSystem =
+        { system, ... }:
+        let
+          pkgs = inputs'.nixpkgs.legacyPackages.${system};
+        in
+        {
+          _module.args.pkgs = pkgs;
+
+          packages =
+            let
+              inherit (inputs.dotfiles.inputs.nix-darwin.packages.${system}) darwin-rebuild;
+            in
+            {
+              inherit darwin-rebuild;
+
+              activate = pkgs.writeScriptBin "activate" ''
+                #!${pkgs.bash}/bin/bash
+                ${darwin-rebuild}/bin/darwin-rebuild switch --flake ${self}#default
+              '';
+            };
+        };
+    };
+}

templates/default.nix

@@ -5,5 +5,10 @@
       description = "Create a barebones devenv";
       path = ./devenv;
     };
+
+    darwin-system = {
+      description = "Create a nix-darwin system configuration";
+      path = ./darwin-system;
+    };
   };
 }