From today:

HardenedBSD Is Now Officially on Radicle

https://news.ycombinator.com/item?id=47944864

the fact that you, as the creator of a "competitor", post this as-is without a "At $co, we…" run-on is a good look

There is also ForgeFed/vervis

Oh, that's pretty cool! Now I can't decide whether that approach or one based on AT is better...