anchor.diff:      if action == "env" then
         pkgs.stdenv.mkDerivation rec {
           name = "nixui-env";
  -        buildInputs = (with pkgs; [ nodejs psmisc nettools ]) ++ [ nodewebkit
  -          npm2nix ];
  +        buildInputs = [ nodewebkit npm2nix ];
           shellHook = ''
             export NODE_PATH="`pwd`/node_modules:$NODE_PATH"
           '';
  
positive.code:   nixui = pkgs.stdenv.mkDerivation rec {
      name = "nixui";
      src = [ { name = "nixui-src"; outPath = ./.; } ];
      buildInputs = [ pkgs.git pkgs.nodePackages.npm ];
      propagatedBuildInputs = [ pkgs.nix pkgs.nodejs ];
      buildPhase = "";
      installPhase = ''
        mkdir -p $out/bin
  
negative.code:       pkgs.stdenv.mkDerivation rec {
          name = "nixui";
          src = nixui;
          shellHook = ''
            ${nixui}/bin/nixui
          '';
  