post_install() {
  echo "==> To enable zramswap, run 'sudo systemctl enable zramswap.service'"
  echo "==> To run the script now, start it with 'sudo systemctl start zramswap.service'"
}

pre_remove() {
  # Stop running services
  _service="zramswap.service"
  systemctl is-active ${_service} &>/dev/null
  if [[ $? -eq 0 ]] ; then
    systemctl stop ${_service}
  fi
  systemctl is-enabled ${_service} &>/dev/null
  if [[ $? -eq 0 ]] ; then
    systemctl disable ${_service}
  fi
}