I've been thinking this, lately, as well.

Most newbies don't actually want to show up and see a feed full of #devs arguing about algorithms and tiered storage, or whatnot. That's an immediate turn-off, even if it sometimes gets more interesting for users, once they've figured out how all this stuff works.

Lots of devs actually have OtherTopics. They just rarely post about them because the dev-y stuff is what gets clicks (from other devs). Since devs are inclined to stay on Nostr, however, and there are so many devs, it would be better for all of us if they/we talked more about our OtherTopics and there be a dev community relay where we could talk our dev stuff.

So, I started one, that I will manually curate: 
https://devs.nostr1.com/

It just picks up keywords that sound "devish", like "C++" or "NDK" or "devs".

nostr:nevent1qvzqqqqqqypzqaw3y9q68yvef3qxy5qlz4wzud8yr2xre7d7l8jd055cy569350zqqswm0f2ewfkh850jryamx6kxqev8enyghjpg5tzez9vqrvf85gtakgqsp87k