Maybe Verboten, but here goes - move away from Flair vents to local controlled vents (not zigbee)

I have bought hook line and sinker, into the Flair Vent ecosystem - for better or worse.

What I would like to do, is take my least needed vent (that I can live without for a while) and disassemble it - to figure out how to rewire it to use ESPHOME or some such home grown DIY mechanism to be able to simply open and close the vent directly (from within HA). Once I have that perfected I would like to be able to make the same modification to all of my flair vents. I know that will avoid my warranty but it is well worth it…

How do I start? Is there a better forum for this kind of work other than here? This should not be at all difficult as the only thing I want to be able to do is see the state of the vent, open it, close it or make it 50% open. Anything else already supplied by Flair I don’t really need (air pressure, etc.). Thoughts? It it would make it even more reliable (and maybe simpler to build) it doesn’t even have to be WiFI but could be hard wired - for power also (batteries not necessary) - ?