Hi, @zleap -
this is a super nice offer and I share the enthusiasm for Big Blue Button 
We do have https://bbb.w3c.social where we usually meet.
We also did the last ActivityPub Conf with BBB:
The page might be down again but there is this mirror of the page (see e.g. Q&A and Lightning Talks) …
But it’s good to know and: Thank You!