post_install() {
	getent group avahi &>/dev/null || groupadd -r -g 84 avahi >/dev/null
	getent passwd avahi &>/dev/null || useradd -r -u 84 -g avahi -d / -s /bin/false -c avahi avahi >/dev/null
	true
}

post_remove() {
	getent passwd avahi &>/dev/null && userdel avahi >/dev/null
	getent group avahi &>/dev/null && groupdel avahi >/dev/null
	true
}