Iroh global content discovery

IPFS is moribund - the funding is drying out and it never seemed to be able to overcome the performance problems. Iroh's next-generation implementation of the idea is finally here - at least most of the puzzle pieces it seems (they aren't making a lot of noise about it yet). I'm excited!

Speaking of using mainline DHT for UDP holepunching, I've suspected you could use DHT (or even, DNS) to replace tailscale's coordination servers entirely. I've been working on a prototype for some time, and it seems to work decently well.