anchor.diff:  , libsoup
   , libgee
   , wrapGAppsHook
  -, vala_0_40
   }:
   
   stdenv.mkDerivation rec {
  
positive.code:   nativeBuildInputs = [
      meson
      ninja
      vala_0_40
      pkg-config
      python3
      wrapGAppsHook
  
negative.code: { lib
  , stdenv
  , fetchFromGitHub
  , nix-update-script
  , meson
  