anchor.diff:  
     # incompatible with wrapGAppsHook
     strictDeps = false;
  +  dontWrapGApps = true;
  +  preFixup = ''
  +    makeWrapperArgs+=("''${gappsWrapperArgs[@]}")
  +  '';
   
     doCheck = false; # no tests
   
  
positive.code: { stdenv, fetchFromGitHub, lib
  , wrapGAppsHook, intltool, qpdf
  , python3Packages, gtk3, poppler_gi
  }:
  
  
negative.code: 
    buildInputs = [
      gtk3 poppler_gi
    ];
  
    propagatedBuildInputs = with python3Packages; [
  