Install and autorun on Homebridge OS

[agoralive]

Hi

I wouldl ike to use the homebridge OS, but when I install zigbee2mqtt using the turorial, I am able to run z2m like this:

4. Starting Zigbee2MQTT #
   Now that we have setup everything correctly we can start Zigbee2MQTT.

cd /opt/zigbee2mqtt
npm start

BUT

I am not able to run z2m as a Daemon using systemctl

How can I make z2m autorun on homebridge OS - after a reboot of the my Raspberry Pi?