On the Fedimint dev call today, we setup a demo federation using Iroh.

Iroh is fucking awesome. It allows each Fedimint guardian to talk to each other via a relay, sets up P2P communication using hole punching, and uses public keys as identifiers (which allows the servers to change their actual IP address).

Everything can run behind a NAT on your laptop or home server. No domain names, no cloud servers, no open ports. It took us just 15 minutes to set one up with zero networking issues.

Distributed systems magic.