anchor.diff:  { lib, stdenv, fetchFromGitHub, cmake, pkg-config, wrapQtAppsHook, boost, libGL
  -, qtbase, python }:
  +, qtbase, python3 }:
   
   stdenv.mkDerivation rec {
   
  
positive.code: 
    nativeBuildInputs = [ cmake pkg-config wrapQtAppsHook ];
    buildInputs = [ boost libGL qtbase ];
  
    buildPhase = ''
      runHook preBuild
  
negative.code: 
    cmakeFlags = let
      options = {
        PYTHON_EXECUTABLE = "${python3.interpreter}";
        NANO_SHARED_BOOST = "ON";
        BOOST_ROOT = boost;
        RAIBLOCKS_GUI = "ON";
  