anchor.diff:    libsndfile,
     ninja,
     portaudio,
  +  portmidi,
     qtbase,
     qtdeclarative,
     qtimageformats,
  +  qtmultimedia,
  +  qtquickcontrols2,
  +  qtserialport,
     qtsvg,
     qttools,
     qtwebsockets,
  
positive.code:     libsndfile
      ninja
      portaudio
      qtbase
      qtdeclarative
      qtimageformats
      qtsvg
      qttools
      qtwebsockets
  
negative.code: {
    alsaLib,
    boost,
    cln,
    cmake,
    fetchFromGitHub,
    gcc,
    ginac,
    jamomacore,
  