anchor.diff:  , python2
   
   , dbus
  -, systemd_lib
  +, libusb
  +# , systemd_lib
   }:
   
   stdenv.mkDerivation rec {
  
positive.code:     # The OS should care on preparing the drivers into this location
      "--enable-usbdropdir=/var/lib/pcsc/drivers"
      "--enable-confdir=/etc"
    ];
  
    meta = with stdenv.lib; {
  
negative.code:   ];
  
    buildInputs = [
      dbus
      libusb
      # systemd_lib
    ];
  
    preConfigure = ''
  