anchor.diff:  
   stdenv.mkDerivation rec {
     pname = "gnome-font-viewer";
  -  version = "43.beta";
  +  version = "43.rc";
   
     src = fetchurl {
       url = "mirror://gnome/sources/gnome-font-viewer/${lib.versions.major version}/${pname}-${version}.tar.xz";
  -    sha256 = "YT3kTZdcJ7yrecZEMMvBBumHMhd03ZaZppllGFckjck=";
  +    sha256 = "Nm/z9WuqFwZWd+j4EnmEoLBrQYNRXupzO1km8cPauDE=";
     };
   
     doCheck = true;
  
positive.code: , libxml2
  , gnome-desktop
  , libadwaita
  , wrapGAppsHook4
  , gnome
  , harfbuzz
  
negative.code:     gnome-desktop
      harfbuzz
      libadwaita
      fribidi
    ];
  
    # Do not run meson-postinstall.sh
  