I'm interested in this as well. I had tried the existing indi_nexdome and of course it does not connect, gives a serial port error.
I did a bit of probing and it turns out the commands are completely different between the old and the new Beaver cntlr. Plus, the baud rate is very different.
I contacted Jaime at Lunatico (manuf of the Beaver cntlr) and he gave me some info to go on. He also stated that a new INDI driver is being worked on.
Can anyone confirm this and let us know a timeframe? I just assembled my dome, am ready to take first light, and here I am manually turning the dome ... !