anchor.diff:        "''${qtWrapperArgs[@]}"
       '';
   
  -  meta = with lib; {
  +  meta = with stdenv.lib; {
       description = "A fancy, customizable, keyboard-operable Qt/QML+Python Matrix chat client for encrypted and decentralized communication";
       homepage = "https://github.com/mirukana/mirage";
       license = licenses.lgpl3;
       maintainers = with maintainers; [ colemickens ];
  +    broken = stdenv.isDarwin;
       inherit (qtbase.meta) platforms;
       inherit version;
     };
  
positive.code: { lib, mkDerivation, fetchFromGitHub
  , qmake, pkgconfig, olm, wrapQtAppsHook
  , qtbase, qtquickcontrols2, qtkeychain, qtmultimedia, qttools, qtgraphicaleffects
  , python3Packages, pyotherside
  }:
  
  let
  
negative.code:     qtquickcontrols2
      qtkeychain qtgraphicaleffects
      olm pyotherside
      libXScrnSaver
    ];
  
    propagatedBuildInputs = pypkgs;
  
    pythonPath = pypkgs;
  
    qmakeFlags = [ "PREFIX=${placeholder "out"}" "CONFIG+=qtquickcompiler" ];
  
    dontWrapQtApps = true;
    postInstall = ''
  