anchor.diff:  
     meta = {
       description = "A simple multi-page document viewer for the MATE desktop";
  -    homepage = https://mate-desktop.org;
  +    homepage = "https://mate-desktop.org";
       license = stdenv.lib.licenses.gpl2;
       platforms = stdenv.lib.platforms.unix;
     };
  
positive.code:     mate.caja
      mate.mate-desktop
      hicolor-icon-theme
    ];
  
    NIX_CFLAGS_COMPILE = "-I${glib.dev}/include/gio-unix-2.0";
  
negative.code: { stdenv, fetchurl, pkgconfig, intltool, gtk3, glib, libxml2, libsecret, poppler, itstool, hicolor-icon-theme, texlive, mate, wrapGAppsHook }:
  
  stdenv.mkDerivation rec {
    pname = "atril";
    version = "1.24.0";
  
    src = fetchurl {
      url = "https://pub.mate-desktop.org/releases/${stdenv.lib.versions.majorMinor version}/${pname}-${version}.tar.xz";
      sha256 = "0967gxw7h2qh2kpwl0jgv58hicz6aa92kr12mnykbpikad25s95y";
    };
  
    nativeBuildInputs = [
  