treewide: remove darwin

darwin/koishi/configuration.nix

@@ -1,23 +0,0 @@
-{ pkgs, ... }: {
-  nixpkgs = { config = { allowUnfree = true; }; };
-
-  services.nix-daemon.enable = true;
-  nix.settings.experimental-features = "nix-command flakes";
-
-  users.users.lu = {
-    name = "lu";
-    home = "/Users/lu";
-    shell = pkgs.fish;
-  };
-
-  programs.fish = {
-    enable = true;
-    vendor = {
-      completions.enable = true;
-      config.enable = true;
-      functions.enable = true;
-    };
-  };
-
-  system.stateVersion = 5;
-}

flake.nix

@@ -19,19 +19,15 @@
     stylix.url = "github:danth/stylix";
     stylix.inputs.nixpkgs.follows = "nixpkgs";
 
-    # nix-darwin
-    darwin.url = "github:lnl7/nix-darwin";
-    darwin.inputs.nixpkgs.follows = "nixpkgs";
-
     # nix-hardware
     nixos-hardware.url = "github:NixOS/nixos-hardware/master";
   };
 
-  outputs = { self, nixpkgs, home-manager, nixos-hardware, darwin, ... }@inputs:
+  outputs = { self, nixpkgs, home-manager, nixos-hardware, ... }@inputs:
     let
       inherit (self) outputs;
       lib = nixpkgs.lib;
-      systems = [ "x86_64-linux" "aarch64-darwin" ];
+      systems = [ "x86_64-linux" ];
       forEachSystem = f: lib.genAttrs systems (system: f pkgsFor.${system});
       pkgsFor = lib.genAttrs systems (system:
         import nixpkgs {
@@ -74,19 +70,5 @@
           ];
         };
       };
-
-      darwinConfigurations = {
-        koishi = darwin.lib.darwinSystem {
-          system = "aarch64-darwin";
-          modules = [
-            ./darwin/koishi/configuration.nix
-            home-manager.darwinModules.home-manager
-            {
-              home-manager.extraSpecialArgs = { inherit inputs outputs; };
-              home-manager.users.lu = import ./home/koishi.nix;
-            }
-          ];
-        };
-      };
     };
 }