feat: welcome darwin configs

Justfile

@@ -4,6 +4,9 @@ _default:
 switch:
 	sudo nixos-rebuild switch --show-trace
 
+switch-darwin:
+	darwin-rebuild switch --flake ~/.config/nix-darwin
+
 build:
 	nixos-rebuild build --show-trace
 

flake.nix

@@ -9,6 +9,9 @@
     home-manager.url = "github:nix-community/home-manager/release-24.05";
     home-manager.inputs.nixpkgs.follows = "nixpkgs";
 
+    nix-darwin.url = "github:LnL7/nix-darwin";
+    nix-darwin.inputs.nixpkgs.follows = "nixpkgs";
+
     agenix.url = "github:ryantm/agenix";
     agenix.inputs.nixpkgs.follows = "nixpkgs";
     agenix.inputs.home-manager.follows = "home-manager";
@@ -87,6 +90,7 @@
         #   (user "milomoisson" { description = "Milo Moisson"; profile = "minimal"; keys = keys.users; })
         # ];
       };
+
       # I bundle my Home Manager config via the NixOS modules which create system generations and give free rollbacks.
       # However, in non-NixOS contexts, you can still use Home Manager to manage dotfiles using this template.
       homeConfigurations = {
@@ -96,5 +100,15 @@
         #   modules = [ ./home-manager/profiles/desktop.nix ];
         # };
       };
+
+      # $ darwin-rebuild build --flake .#MacBook-Pro-de-Milo
+      darwinConfigurations = with flake-lib.darwin; {
+        "apple-wiro-laptop" = createSystem pkgs."aarch64-darwin" [
+          (system "apple-wiro-laptop" "macintosh")
+          (user "milomoisson" { description = "Milo Moisson"; profile = "desktop"; keys = keys.users; })
+        ];
+      };
+
+      # darwinPackages = ...;
     };
 }

lib/flake/default.nix

@@ -14,14 +14,15 @@ in
 rec {
   forAllSystems = genAttrs [ "x86_64-linux" "aarch64-linux" "aarch64-darwin" ];
 
-  # Makes
-  # - flake accessible through `self`
-  # - local flake library accessible through `llib`
-  # - unstable nixpkgs set accessible through `upkgs`
+  # - `self`: flake
+  # - `llib`: local flake library
+  # - `upkgs`: unstable nixpkgs set
+  # - `isDarwin`: indicates if system is darwin
   specialModuleArgs = pkgs: {
     inherit self;
     llib = import ../. pkgs;
     upkgs = import nixpkgs-unstable { inherit (pkgs) system config; };
+    isDarwin = pkgs.stdenv.isDarwin;
   };
 
   createSystem = pkgs: modules: nixosSystem {
@@ -39,4 +40,15 @@ rec {
   };
   user = import ./user.nix;
   managedDiskLayout = import ./managedDiskLayout.nix;
+
+  # Darwin related
+  darwin = {
+    createSystem = pkgs: modules: darwinSystem {
+      inherit pkgs modules;
+      specialArgs = specialModuleArgs pkgs;
+    };
+
+    inherit system;
+    user = import ./user.nix;
+  };
 }

nixos/hardware/apple-wiro-laptop.nix

@@ -0,0 +1,19 @@
+{ self
+, config
+, lib
+, ...
+}:
+
+{
+  imports = [ ];
+
+  config = {
+    system.configurationRevision = self.rev or self.dirtyRev;
+
+    # Used for backwards compatibility, please read the changelog before changing.
+    # $ darwin-rebuild changelog
+    system.stateVersion = 4;
+
+    nixpkgs.hostPlatform = "aarch64-darwin";
+  };
+}

nixos/modules/nix.nix

@@ -1,6 +1,8 @@
 { self
 , lib
+, pkgs
 , config
+, isDarwin
 , ...
 }:
 
@@ -27,8 +29,13 @@ in
 
       gc = {
         automatic = true;
-        dates = "weekly";
-      };
+      }
+      # Same option to say that GC is ran weekly at 3h15
+      // (if isDarwin then {
+        interval = { Weekday = 7; Hour = 3; Minute = 15; };
+      } else {
+        dates = "Sun *-*-* 03:15:00";
+      });
 
       settings = {
         experimental-features = [ "nix-command" "flakes" ];
@@ -45,11 +52,13 @@ in
           "https://nix-community.cachix.org"
           "https://mrnossiom.cachix.org"
           "https://radicle.cachix.org"
+          "https://helix.cachix.org"
         ];
         extra-trusted-public-keys = [
           "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
           "mrnossiom.cachix.org-1:WKo+xfDFaT6pRP4YiIFsEXvyBzI/Pm9uGhURgF1wlQg="
           "radicle.cachix.org-1:x7jrVNzziAP6GAAJF2wvgJBndqRhmh2EylgWr93ofx0="
+          "helix.cachix.org-1:ejp9KQpR1FBI2onstMQ34yogDm4OgU2ru6lIwPvuCVs="
         ];
       };
     };

nixos/profiles/macintosh.nix

@@ -0,0 +1,27 @@
+{ self
+, lib
+, config
+, pkgs
+, upkgs
+, ...
+}:
+
+with lib;
+
+let
+  inherit (self.outputs) nixosModules;
+in
+{
+  # Hardware is imported in the flake to be machine specific
+  imports = map (modPath: ../modules/${modPath}) [
+    # "agenix.nix"
+    # "logiops.nix"
+    "nix.nix"
+  ];
+
+  security.pam.enableSudoTouchIdAuth = true;
+
+  services.nix-daemon.enable = true;
+
+  programs.zsh.enable = true;
+}