post_upgrade() {
	# in case it wasn't already run by glibc
	locale-gen

	systemctl enable --now avahi-daemon.service
	mount | grep -q "on / type btrfs" && systemctl enable --now btrfs-scrub@-.timer
}

post_install() {
	post_upgrade
}

pre_remove() {
	systemctl disable avahi-daemon.service
	systemctl disable btrfs-scrub@-.timer
}