anchor.diff:      pyserial
       setuptools
       wxPython_4_0
  -  ];
  +  ] ++ lib.optionals stdenv.isDarwin [ billiard gnureadline ];
   
     # No tests
     doCheck = false;
  
positive.code:     sha256 = "fe046481b793b592334749249620fce8a463f4c46b394ff744645975465d677b";
    };
  
    propagatedBuildInputs = [
      matplotlib
      numpy
  
negative.code: { stdenv, lib, buildPythonApplication, fetchPypi, matplotlib, numpy, pymavlink, pyserial
  , setuptools, wxPython_4_0, billiard, gnureadline }:
  
  buildPythonApplication rec {
    pname = "MAVProxy";
  