Hey, I'm part of the team at Venu! Initially we only supported the single streamer. Recently, however, we introduced support to have multiple people share their screen and present at one time (as long as they're invited as organizers for the meetup). We're in the process of updating the verbiage on the site to better reflect some of the updates we've made in the past few months!

Eventually we have plans to introduce breakout sessions or another way for viewers to be able to communicate more privately.

That sounds pretty cool. It definitely seems like a lot of work was already put into it, but would look forward to that too. Nice work!