Re: the meetups - right now we are using Zoom registration pages for the meetups. For the first meetup, the registration link was shared via social media and a Meetup message to all members of GitLab meetup groups. Following Meetup.com's announcement that they have released a feature for online events, we will also invite our GitLab Meetup organizers to create event pages for these remote meetups going forward.
The previous online meetup was organized by GitLab, not tied to a group. Meetup Groups are still tied to a location so a "global" meetup group is imperfect but perhaps worth further consideration.
We will continue to evaluate our options for remote meetups but I wanted to get moving with the tools we have and iterate from there.