What (non-media) communities from other servers do you like?

I hope this isn't off-topic, but I found that searching across servers isn't really as easy as on reddit, so I thought we might share some of the other communities we like and see if everyone else has similar interests. I can talk about TV all day, but I also want to see other content!

I'll start with 3 that I like:

1. Memes at https://lemmy.film/c/memes@lemmy.ml , because everyone needs something low-effort to doomscroll

2. AI art at https://sh.itjust.works/c/imageai , because it's kinda cool

3. Stories at https://lemmy.film/c/maliciouscompliance@lemmy.world , because nothing beats that feeling of "i told you so".