anchor.diff:  , glib
   , cairo
   , sqlite
  -, libsoup
  +, libsoup_3
   , gtk4
   , xvfb-run
   , gnome
  
positive.code:     owner = "GNOME";
      repo = "libshumate";
      rev = version;
      sha256 = "4kCXFUJRglh1aIBk03MNUV8jfx0mJzIFCUDM4g9tzlg=";
    };
  
    nativeBuildInputs = [
  
negative.code: 
  stdenv.mkDerivation rec {
    pname = "libshumate";
    version = "1.0.0.beta";
  
    outputs = [ "out" "dev" "devdoc" ];
    outputBin = "devdoc"; # demo app
  