I’ll bring some retrocomputing kit and some soldering work I’ve been putting off - not exactly a spectator sport but I can talk about my projects to anyone who’ll listen! The combination of 1980’s home computers and Raspberry Pi is a special interest of mine.
Yes, cracking on with the problems sounds good to me. And breaking out into smaller groups to do specific things, e.g. Ed’s and your show and tells (shows and tells?), further research on air pollution, etc.
We could also usefully come up with a shopping list for things we want to buy now (as well as further thoughts about big-ticket items to bring in the punters), as Lisa is happy for us to go ahead with this. And talk about a leaflet design & content.