We need "post to n set of relays (which I've nicknamed <name>" and "read from n set of relays" and we need it yesterday. 

- post picture to family relays
- read from porn relays
- post picture to All
Etc.

This has to be a first-class citizen feature that is normalized in all major Nostr clients. You should always be in "a context" in a Nostr client (even if that context is "all follows" or "global") no matter whether you're reading or writing. 

This is the missing piece that makes Nostr a social network revolution and its being left on the table. If I had slightly more free time away from work I'd do it myself and still might anyway