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b5a6b0693e
This isn't necessary. Because we just log the error, we never match off of it,
we don't need any structure beyond String (or now Debug, which still gives us
a way to print the error). This is for the ergonomics of not having to
constantly write `.map_err(|e| format!("{e:?}"))`.
Serai Coordinator libp2p P2P
A libp2p-backed P2P instantiation for Serai's coordinator.
The libp2p swarm is limited to validators from the Serai network. The swarm does not maintain any of its own peer finding/routing infrastructure, instead relying on the Serai network's connection information to dial peers. This does limit the listening peers to only the peers immediately reachable via the same IP address (despite the two distinct services), not hidden behind a NAT, yet is also quite simple and gives full control of who to connect to to us.
Peers are decided via the internal DialTask which aims to maintain a target
amount of peers for each external network. This ensures cosigns are able to
propagate across the external networks which sign them.