anchor.diff:  
     nativeBuildInputs = [
       pkgconfig
  +    cmake
     ];
   
     buildInputs = [
  -    cmake
       bluez
       ffmpeg
       libao
  
positive.code:     libevdev
      libXdmcp
      portaudio
      libusb
      libpulseaudio
      libevdev
      libXdmcp
      portaudio
      libusb
      libpulseaudio
      wxGTK30
      soundtouch
  
negative.code: , libXdmcp
  , portaudio
  , fetchFromGitHub
  , libusb1
  , libevdev
  , wxGTK30
  , soundtouch
  