zlacker

I don't actually need much, I think basically just encrypted cloud storage would be great. If there was something like proton mail, but ran as a co-op, I'd also use that (it has great calendar support too).

I'd really focus on it being usable for non-techies, I don't think I'd want a linux login for anything. IMO, the focus should be on the basic infrastructure of digital life for the everyday person.

tilde.club sounds interesting though! Hadn't heard of it before.