My working setup was:
RPi running HA core
RPi running zigbee2mqtt
All working fine, until a power cut and the RPi HA died, and no I didn’t have a recent backup
The RPi has been replaced with a spare Intel based NUC I had in the drawer. This is running latest HA on latest Ubuntu. But here is the issue : I can not remember how to get the zigbee2mqtt working to the new HA?
The zigbee2mqtt needs to connect to an MQTT server/broker but where should I be installing that? On the RPi with zigbee2mqtt or on the NUC with HA?
I don’t have the Add-On store so I can not just add the broker, but I could manually install a Mosquitto server on the HA machine. Is that the best way?
All fixed! I restarted the zigbee2mqtt and it all got sorted!
Needed to see the “light bulb” entity messages and it ok now.
Thanks for the quick answers