Initial nix-darwin revision

Slightly less hectic for the outputs part. :)

darwin/darwin.nix

@@ -0,0 +1,37 @@
+{ pkgs, system, ... }: {
+  # List packages installed in system profile. To search by name, run:
+  # $ nix-env -qaP | grep wget
+  environment.systemPackages = [
+    pkgs.vim
+  ];
+
+  # Auto upgrade nix package and the daemon service.
+  services.nix-daemon.enable = true;
+  nix.package = pkgs.nix;
+
+  # Necessary for using flakes on this system.
+  nix.settings.experimental-features = "nix-command flakes";
+
+  # Create /etc/zshrc that loads the nix-darwin environment.
+  programs.zsh.enable = true;
+
+  # Used for backwards compatibility, please read the changelog before changing.
+  # $ darwin-rebuild changelog
+  system.stateVersion = 4;
+
+  nixpkgs = {
+    # TODO(spotlightishere): Make this configurable beyond a singular device.
+    hostPlatform = "aarch64-darwin";
+
+    # Custom packages.
+    # TODO(spotlightishere): Why does this need to be specified in both home-manager and globally?
+    overlays = [ (import ../pkgs/default.nix) ];
+  };
+
+  # Our singular user!
+  users.users.spot = {
+    description = "Spotlight Deveaux";
+    home = "/Users/spot";
+    shell = pkgs.zsh;
+  };
+}

flake.lock

@@ -65,6 +65,26 @@
         "type": "github"
       }
     },
+    "nix-darwin": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1711763326,
+        "narHash": "sha256-sXcesZWKXFlEQ8oyGHnfk4xc9f2Ip0X/+YZOq3sKviI=",
+        "owner": "LnL7",
+        "repo": "nix-darwin",
+        "rev": "36524adc31566655f2f4d55ad6b875fb5c1a4083",
+        "type": "github"
+      },
+      "original": {
+        "owner": "LnL7",
+        "repo": "nix-darwin",
+        "type": "github"
+      }
+    },
     "nixpkgs": {
       "locked": {
         "lastModified": 1712608508,
@@ -87,6 +107,7 @@
         "darwin-systems": "darwin-systems",
         "home-manager": "home-manager",
         "linux-systems": "linux-systems",
+        "nix-darwin": "nix-darwin",
         "nixpkgs": "nixpkgs"
       }
     }

flake.nix

@@ -12,17 +12,21 @@
       url = "github:nix-community/home-manager";
       inputs.nixpkgs.follows = "nixpkgs";
     };
+    nix-darwin = {
+      url = "github:LnL7/nix-darwin";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
   };
 
-  outputs = { nixpkgs, home-manager, linux-systems, darwin-systems, all-systems, ... }:
+  outputs = inputs@{ nixpkgs, home-manager, nix-darwin, ... }:
     let
       # TODO(spotlightishere): Is there a better way to approach this that doesn't
       # involve importing so many separate flakes?
       #
       # (We could manually merge Darwin and Linux themselves, but this is primarily for readability.)
-      allSystems = nixpkgs.lib.genAttrs (import all-systems);
-      darwinSystems = nixpkgs.lib.genAttrs (import darwin-systems);
-      linuxSystems = nixpkgs.lib.genAttrs (import linux-systems);
+      allSystems = nixpkgs.lib.genAttrs (import inputs.all-systems);
+      darwinSystems = nixpkgs.lib.genAttrs (import inputs.darwin-systems);
+      linuxSystems = nixpkgs.lib.genAttrs (import inputs.linux-systems);
 
       homeManager = { system, specialArgs ? { } }:
         home-manager.lib.homeManagerConfiguration {
@@ -49,10 +53,6 @@
               # For now, this is effectively true, sans a few specific configurations :)
               spotlight = homeManager {
                 system = system;
-                specialArgs = {
-                  desktop = false;
-                  gpg = false;
-                };
               };
 
               # For a special case: with the Steam Deck, we have to assume the user
@@ -88,12 +88,29 @@
       # (Again, we assume a default name of `spotlight` under Linux.)
       nixosModules.default = {
         imports = [
-          home-manager.nixosModules.home-manager {
+          home-manager.nixosModules.home-manager
+          {
             home-manager = {
               useGlobalPkgs = true;
               useUserPackages = true;
               users.spotlight = import ./home/home.nix;
-              extraSpecialArgs = { desktop = false; gpg = false; };
+            };
+          }
+        ];
+      };
+
+      # We define a default Darwin configuration via nix-darwin.
+      darwinConfigurations."spotlights-macbook-air" = nix-darwin.lib.darwinSystem {
+        modules = [
+          # System-wide configuration
+          ./darwin/darwin.nix
+          # Our provided home-manager configuration
+          home-manager.darwinModules.home-manager {
+            home-manager = {
+              useGlobalPkgs = true;
+              useUserPackages = true;
+              users.spot = import ./home/home.nix;
+              extraSpecialArgs = { desktop = true; gpg = true; };
             };
           }
         ];