refactor to fix dependency on 'osConfig' arg

modules/hosts/takamaki/takamaki.nix

@@ -13,6 +13,7 @@
       rootPath = "/home/grey/flake";
       hostName = "takamaki";
       stateVersion = "26.11";
+      isStandalone = true;
     };
 
     features = {
@@ -26,6 +27,10 @@
           fastfetch.enable = true;
         };
 
+        gui = {
+          vscode.enable = true;
+        };
+
         extraPackages = with pkgs; [
           (writeShellScriptBin "switch-os" ''
             sudo efibootmgr --bootnext 0000