add x86_64-darwin

flake.nix

@@ -24,7 +24,7 @@
     , ...
     }:
     flake-parts.lib.mkFlake { inherit inputs; } {
-      systems = [ "aarch64-darwin" "x86_64-linux" ];
+      systems = [ "aarch64-darwin" "x86_64-darwin" "x86_64-linux" ];
       perSystem = { config, system, ... }:
         let
           pkgs = nixpkgs.legacyPackages.${system};