anchor.diff:  , qtmacextras
   , qtmultimedia
   , qttools
  +, qtquickcontrols2
  +, qtgraphicaleffects
   , mtxclient
  -, boost
  +, boost17x
   , spdlog
   , olm
   , pkgconfig
  
positive.code:     tweeny
      mtxclient
      olm
      boost
      lmdb
      spdlog
      cmark
      qtbase
      qtmultimedia
      qttools
    ] ++ lib.optional stdenv.isDarwin qtmacextras;
  
    enableParallelBuilding = true;
  
negative.code: 
  mkDerivation rec {
    pname = "nheko";
    version = "0.7.1";
  
    src = fetchFromGitHub {
      owner = "Nheko-Reborn";
      repo = "nheko";
      rev = "v${version}";
      sha256 = "12sxibbrn79sxkf9jrm7jrlj7l5vz15claxrrll7pkv9mv44wady";
    };
  
    # If, on Darwin, you encounter the error
  