anchor.diff:  
   stdenv.mkDerivation rec {
     pname = "gnome-control-center";
  -  version = "41.4";
  +  version = "42.beta";
   
     src = fetchurl {
       url = "mirror://gnome/sources/${pname}/${lib.versions.major version}/${pname}-${version}.tar.xz";
  -    sha256 = "sha256-1tsMTLcIV77PSKxQB/ErX2O51dfoDqfuV9O+USZp98k=";
  +    sha256 = "sha256-973QoT+FLQsQyU8oT54wmYuHDZBkfn3TftfvebJQEt0=";
     };
   
     patches = [
  
positive.code:     upower
    ];
  
    postPatch = ''
      chmod +x build-aux/meson/meson_post_install.py # patchShebangs requires executable file
      patchShebangs build-aux/meson/meson_post_install.py
    '';
  
    preFixup = ''
  
negative.code: , gnome
  , gsettings-desktop-schemas
  , gsound
  , gtk4
  , ibus
  , libgnomekbd
  , libgtop
  , libgudev
  , libadwaita
  , libkrb5
  , libpulseaudio
  , libpwquality
  , librsvg
  , libsecret
  , libwacom
  , libxml2
  , libxslt
  