anchor.diff:    propagatedBuildInputs = with python3.pkgs; [
       pygobject3
       pyxdg
  +    pypdf2
     ];
   
     meta = with lib; {
  
positive.code: 
  python3.pkgs.buildPythonApplication rec {
    pname = "setzer";
    version = "0.3.2";
  
    src = fetchFromGitHub {
      owner = "cvfosammmm";
      repo = "Setzer";
      rev = "v${version}";
      sha256 = "1c7jrq20m53y2k8lmh37zldgc3bndldxipx4xq0lz3qq2fv1gg07";
    };
  
    format = "other";
  
negative.code:     appstream # for appstreamcli
      appstream-glib
      wrapGAppsHook
      desktop-file-utils
    ];
  
    buildInputs = [
  