anchor.diff:  
   stdenv.mkDerivation rec {
     pname = "xdg-desktop-portal-gnome";
  -  version = "41.1";
  +  version = "42.rc";
   
     src = fetchurl {
       url = "mirror://gnome/sources/${pname}/${lib.versions.major version}/${pname}-${version}.tar.xz";
  -    sha256 = "u6FEGZ5+1LlJCyScGvZFqGnWKZMmXerDjyGb8EL//fI=";
  +    sha256 = "NSQFoSKAQXsC21jy6Muq7xAtcmOdeXZAH8/ME01kw7U=";
     };
   
     nativeBuildInputs = [
  
positive.code: , gsettings-desktop-schemas
  , gtk4
  , libadwaita
  , xdg-desktop-portal
  , wayland
  , gnome
  
negative.code:     gsettings-desktop-schemas # settings exposed by settings portal
      gtk4
      libadwaita
      gnome-desktop
      xdg-desktop-portal
      wayland # required by GTK 4
    ];
  