post_install() {
  echo "You need the 'Out Run (Rev B)' Rom set data files. Put them under"
  echo "'~/.cannonball/roms'. The launcher script will also place a config"
  echo "file there, if not already existing."
}

post_upgrade() {
  post_install
}

post_remove() {
  echo "You may remove leftover config and data files from '~/.cannonball'."
}