Custom capabilities is something fairly new. I haven’t looked at them a lot and I’m not planning anything with them right now.
Right now, this device works well in the old app and as it implements the thermostat capability it works to a limited degree from the new app and through voice assistants etc. However, the way this device works from the new app today is not ideal, so I think some kind of custom capabilities is the way to go there, but I honestly don’t know enough about this right now to properly assess how to make it work best, so that it both works in old app, new app and voice assistants. So right now I’m not planning on doing something there, but I may do something in the future.
If someone want to take this up, I’ll be happy to discuss options.