Add darwin configuration into

modules/system/nixos/network/manager.nix

@@ -0,0 +1,15 @@
+{ lib, config, ... }:
+with lib;
+let
+  cfg = config.os.networks.manager;
+in
+{
+  options.os.networks.manager = {
+    enable = mkEnableOption "System networks manager service";
+  };
+  config = mkIf cfg.enable {
+
+    networking.networkmanager.enable = true;
+
+  };
+}