anchor.diff:  
   stdenv.mkDerivation rec {
     pname = "gnome-maps";
  -  version = "42.0";
  +  version = "42.1";
   
     src = fetchurl {
       url = "mirror://gnome/sources/${pname}/${lib.versions.major version}/${pname}-${version}.tar.xz";
  -    sha256 = "sha256-BUSG03dAc3BqdqmBQXl40VG+O3Ik1yN3W74xbvoked8=";
  +    sha256 = "sha256-CC+ElBAf080xvU8a6YgXEOMqUz+y3belcSJ5bJRm0q4=";
     };
  -
  -  patches = [
  -    # Do not pin to GWeather 3.0, the used API did not change in 4.0.
  -    (fetchpatch {
  -      url = "https://gitlab.gnome.org/GNOME/gnome-maps/-/commit/759d3087b70341b2c5f1af575ce44338d926690e.patch";
  -      sha256 = "Qp9Hta00TLf2lOb9+g9vnPoK17mP3eHpCG2i1ewaw+w=";
  -      revert = true;
  -    })
  -  ];
   
     doCheck = true;
   
  
positive.code:     geocode-glib
      gjs
      gnome-online-accounts
      gnome.adwaita-icon-theme
      gobject-introspection
      gsettings-desktop-schemas
      gtk3
  
negative.code: { stdenv
  , lib
  , fetchurl
  , meson
  , ninja
  , gettext
  