anchor.diff:    propagatedBuildInputs = with python3.pkgs; [
       pygobject3
       pyxdg
  +    pypdf2
     ];
   
     meta = with lib; {
  
positive.code: , appstream
  , appstream-glib
  , wrapGAppsHook
  , gobject-introspection
  , gtksourceview4
  , gspell
  
negative.code: 
  python3.pkgs.buildPythonApplication rec {
    pname = "setzer";
    version = "0.3.9";
  
    src = fetchFromGitHub {
      owner = "cvfosammmm";
      repo = "Setzer";
      rev = "v${version}";
      sha256 = "1qmy2bxl8x6pijjaaj91v6rqdipha6iyy0b6b9y1lk3r2p3azd42";
    };
  
    format = "other";
  