post_install () {
  # Check user/group murmur exists
  getent group murmur >/dev/null || groupadd --system murmur
  getent passwd murmur >/dev/null || \
	  useradd --system -c "Murmur voice server" -g murmur -s /bin/false -d /var/lib/murmur murmur
  post_upgrade
}

post_upgrade() {
  # Ensure directories exist
  mkdir -p /var/lib/murmur /run/murmur
  # Fix permissions on necessary directories
  chown murmur.murmur /var/lib/murmur /run/murmur
}