anchor.diff:    postPatch = ''
       chmod +x build-aux/meson/meson_post_install.py
       patchShebangs build-aux/meson/meson_post_install.py
  -
  -    # https://gitlab.gnome.org/GNOME/gnome-todo/merge_requests/103
  -    substituteInPlace src/meson.build \
  -      --replace 'Gtk-3.0' 'Gtk-4.0'
     '';
   
     passthru = {
  
positive.code:     gettext
      python3
      wrapGAppsHook
    ];
  
    buildInputs = [
  
negative.code: , libical
  , librest
  , json-glib
  , itstool
  }:
  
  stdenv.mkDerivation rec {
    pname = "gnome-todo";
    version = "41.0";
  
    src = fetchurl {
      url = "mirror://gnome/sources/${pname}/${lib.versions.major version}/${pname}-${version}.tar.xz";
      sha256 = "1r94880d4khbjhhfnhaba3y3d4hv2bri82rzfzxn27s5iybpqras";
    };
  
    nativeBuildInputs = [
  