Merge pull request #131 from pjjw/aarch64-darwin

add aarch64-darwin to built systems

Author: balsoft

flake.nix

@@ -127,7 +127,7 @@
       };
     };
   } //
-    utils.lib.eachDefaultSystem (system:
+    utils.lib.eachSystem (utils.lib.defaultSystems ++ ["aarch64-darwin"]) (system:
       let
         pkgs = import nixpkgs { inherit system; overlays = [ self.overlay ]; };
       in