anchor.diff:      gst-plugins-good
       gst-plugins-ugly
     ]);
  +
  +  outputs = [ "out" "doc" "man" ];
  +  sphinxBuilders = [ "html" "man" ];
   
     postInstall = ''
       mkdir -p $out/share/zsh/site-functions
  
positive.code:   # see: https://github.com/NixOS/nixpkgs/issues/56943#issuecomment-1131643663
    nativeBuildInputs = [
      gobject-introspection
    ];
  
    buildInputs = [
  
negative.code: , gst_all_1
  , lib
  , python3Packages
  , sphinxHook
  , runtimeShell
  , writeScript
  
  