anchor.diff:      libxml2
       pango
       shared_mime_info
  -    gnome3.tracker
  +    tracker
  +    xorg.libX11
     ];
   
     preFixup = ''
  
positive.code: , libxml2
  , pango
  , shared_mime_info
  , xorg
  }:
  
  
negative.code: 
    src = fetchurl {
      url = "mirror://gnome/sources/nautilus/${versionMajor}/${name}.tar.xz";
      sha256 = "05fclrqmk024pjskwlp4bcqd8bsyxv9awaznv3cwwk1bab02gab0";
    };
  
    patches = [
  