Yeah, one niche group was not enough for me, so here is another one. A bit barebones at the moment, but that can improve.

https://t.me/vacuum_consumption

I'm very interested in such things, but it's so niche it only really feels like DMs is a fitting place to chat about it. So why not make such a group?
Feel free to join, I may be a bit slow with approving new members, but I will get around to do it sooner or later.