post_install()
{
    echo
    echo "Run \`systemctl enable btrfs-sxbackup@subvolume.timer' for daily backups."
    echo
    echo "For example, for a root source-subvolume:"
    echo
    echo "    btrfs-sxbackup init / destination-subvolume"
    echo "    systemctl enable btrfs-sxbackup@-.timer"
}

post_upgrade()
{
    post_install "$1"
}
