anchor.diff:  
   stdenv.mkDerivation rec {
     pname = "gnome-builder";
  -  version = "42.0";
  +  version = "42.1";
   
     outputs = [ "out" "devdoc" ];
   
     src = fetchurl {
       url = "mirror://gnome/sources/${pname}/${lib.versions.major version}/${pname}-${version}.tar.xz";
  -    sha256 = "Uu/SltaLL/GCNBwEgdz9cGVMQIvbZ5/Ot225cDwiQo8=";
  +    sha256 = "XU1RtwKGW0gBcgHwxgfiSifXIDGo9ciNT86HW1VFZwo=";
     };
  -
  -  patches = [
  -    # Fix appstream validation
  -    (fetchpatch {
  -      url = "https://gitlab.gnome.org/GNOME/gnome-builder/-/commit/d7151679e0c925d27216256dc32fe67fb298d059.patch";
  -      sha256 = "vdNJawkqSBaFGRZvxzvjOryQpBL4jcN7tr1t3ihD7LA=";
  -    })
  -  ];
   
     nativeBuildInputs = [
       appstream-glib
  
positive.code:     "-Dnetwork_tests=false"
    ];
  
    # Some tests fail due to being unable to find the Vte typelib, and I don't
    # understand why. Somebody should look into fixing this.
    doCheck = true;
  
    postPatch = ''
  
negative.code: , appstream-glib
  , desktop-file-utils
  , fetchurl
  , flatpak
  , gnome
  , libgit2-glib
  