anchor.diff:    buildInputs = [
       gtk3
       librsvg
  -    guile
  +    guile_3_0
       libcanberra-gtk3
     ];
   
  
positive.code: 
  stdenv.mkDerivation rec {
    pname = "aisleriot";
    version = "3.22.20";
  
    src = fetchFromGitLab {
      domain = "gitlab.gnome.org";
      owner = "GNOME";
      repo = pname;
      rev = version;
      sha256 = "sha256-5xFwlhT9qjtvNDQ8kfGd2BeK2KcJDzpfsEC8z4Ei3ns=";
    };
  
    nativeBuildInputs = [
  
negative.code: { stdenv
  , lib
  , fetchFromGitLab
  , nix-update-script
  , pkg-config
  