anchor.diff:  {
  +airspy,
   boost,
   cm256cc,
   cmake,
  
positive.code:   nativeBuildInputs = [ cmake pkgconfig ];
    buildInputs = [
      glew opencv3 libusb boost libopus limesuite libav libiio libpulseaudio
      qtbase qtwebsockets qtmultimedia
      fftwFloat
      codec2' cm256cc serialdv
    ];
    cmakeFlags = [
      "-DLIBSERIALDV_INCLUDE_DIR:PATH=${serialdv}/include/serialdv"
  
negative.code: qtbase,
  qtmultimedia,
  qtwebsockets,
  rtl-sdr,
  serialdv
  }:
  
  