anchor.diff:    nativeBuildInputs = [ pkg-config qmake removeReferencesTo wrapGAppsHook ];
   
     buildInputs = [
  -    chmlib
       fontconfig
       hunspell
       hyphen
  
positive.code: , hunspell
  , hyphen
  , unrarSupport ? false
  , chmlib
  , python3Packages
  , libusb1
  , libmtp
  
negative.code:       msgpack
        netifaces
        pillow
        pychm
        pyqt-builder
        pyqt5
        python
  