Moving ConbeeII from RPI3 to RPI4

I have a working install o f Conbee II on RPI3.

This is fully integrated with Home Assistant that runs on a different RPI3 under HASSIO.

I need to move this to a new RPI4 I just configured with Raspbian Buster.

Could someone please help me with the steps necessary to do it without breaking my already fully working integration with Home Assistant?

Thank you.

@oleggold

So I perfectly understand your setup - do you have the Conbee setup on a RPi externally from the RPi running HA? How did you make that work, so HA can communicate with the remote Conbee?