anchor.diff:  { stdenv, fetchzip, buildEnv, makeDesktopItem, runCommand, writeText, pkgconfig
   , cmake, qmake, cacert, jsoncpp, libX11, libXScrnSaver, lua, openssl, poco
  -, qtbase, qtwebkit, qtx11extras, sqlite }:
  +, qtbase, qtwebengine, qtx11extras, sqlite }:
   
   let
     name = "toggldesktop-${version}";
  
positive.code:       libtoggl
        qxtglobalshortcut
        qtbase
        qtwebkit
        qt-oauth-lib
        qtx11extras
        libX11
  
negative.code: 
    qt-oauth-lib = stdenv.mkDerivation rec {
      name = "qt-oauth-lib-${version}";
      version = "20190125.190943";
  
      src = fetchzip {
        url = "https://github.com/yegortimoshenko/qt-oauth-lib/archive/${version}.tar.gz";
        sha256 = "0zmfgvdf6n79mgfvbda7lkdxxlzjmy86436gqi2r5x05vq04sfrj";
      };
  
      nativeBuildInputs = [ qmake ];
      buildInputs = [ qtbase qtwebengine ];
    };
  
    poco-pc = writeText "poco.pc" ''
  