anchor.diff:  { stdenv, newScope, makeWrapper
  -, wrapGAppsHook, gnome3, glib
   , electron, xdg_utils, makeDesktopItem
   , auth0ClientID ? "0spuNKfIGeLAQ_Iki9t3fGxbfJl3k8SU"
   , auth0Domain ? "nixpkgs.auth0.com" }:
  
positive.code:   postFixup = ''
      makeWrapper ${electron}/bin/electron $out/bin/rambox \
        --add-flags "${rambox-bare} --without-update" \
        "''${gappsWrapperArgs[@]}" \
        --prefix PATH : ${xdg_utils}/bin
    '';
  
  
negative.code: stdenv.mkDerivation {
    name = "rambox-${rambox-bare.version}";
  
    nativeBuildInputs = [ makeWrapper ];
  
    unpackPhase = ":";
  
    dontWrapGApps = true; # we only want $gappsWrapperArgs here
  