I went to a Retro-computing event at the Centre for Computing History in Cambridge, UK, today.
An added bonus was some folks from Bletchley Park in attendance whom I had a chance to talk with about their computer collection.
There were a lot of 1980s/90s vintage Home and School computers there to play with. Also, a lot of the early Microcomputer kits only folks of my age would recall e.g. the MOS KIM-1.
A few emulated PDP-11 machines and lots of mini/mainframe machines which many don't know.
General purpose mastodon instance