post_install() {
  cat <<EOF
For some of nvidia proprietary driver users will be necessary to add this:
  >>  Option "RegistryDwords" "RMUseSwI2c=0x01; RMI2cSpeed=100"
to "Device" section in:
  >>  /etc/X11/xorg.conf.d/20-nvidia.conf
or similar place.
EOF
}
post_install