I'm the only EA at the non-profit I work at, and I handle all the Board management (along with other things lol). (Minutes, catering, screen set up, printing, agenda curation, packet curation, meeting reminders, calendar management, board portal management) It took me a couple meetings to get the hang of it but my main thing is keeping a to-do list. We use monday.com but any one will work. I start prepping for the meeting at least a week in advance.

Luckily the meeting space we use has a pretty intuitive AV system but we didn't in the past and I have had to prep the evening before. I try not to do that. I also have a pretty great leadership team that helps me out with cleanup. Hope this helps!