anchor.diff:  
   stdenv.mkDerivation rec {
     pname = "gnome-software";
  -  version = "41.4";
  +  version = "42.beta";
   
     src = fetchurl {
       url = "mirror://gnome/sources/gnome-software/${lib.versions.major version}/${pname}-${version}.tar.xz";
  -    sha256 = "evhzzkcs8racUbyevGG4Nt+8z9b0Jwbj7TqpCaruxGU=";
  +    sha256 = "vGxp+8L0IMjQA604lu6Coe8GpIFWS5E69StzFxf7TXY=";
     };
   
     patches = [
  
positive.code:   ];
  
    buildInputs = [
      gtk3
      glib
      packagekit
      appstream
      libsoup
      libhandy
      gsettings-desktop-schemas
      gnome-desktop
      gspell
  
negative.code: , glib
  , appstream
  , libsoup
  , libadwaita
  , polkit
  , isocodes
  , gspell
  