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//! Iroh's relay is a feature within [iroh](https://github.com/n0-computer/iroh), a peer-to-peer
//! networking system designed to facilitate direct, encrypted connections between devices. Iroh
//! aims to simplify decentralized communication by automatically handling connections through
//! "relays" when direct connections aren't immediately possible. The relay server helps establish
//! connections by temporarily routing encrypted traffic until a direct, P2P connection is
//! feasible. Once this direct path is set up, the relay server steps back, and the data flows
//! directly between devices. This approach allows Iroh to maintain a secure, low-latency
//! connection, even in challenging network situations.
//!
//! This crate provides a complete setup for creating and interacting with iroh relays, including:
//! - [`protos::relay`]: The protocol used to communicate between relay servers and clients. It's a
//! revised version of the Designated Encrypted Relay for Packets (DERP) protocol written by
//! Tailscale.
//!
//! Optionally will also expose a stun endpoint and metrics. (requires the feature flag `server`)
//! - [`client`]: A client for establishing connections to the relay.
//! - *Server Binary*: A CLI for running your own relay server. It can be configured to also offer
//! STUN support and expose metrics.
// Based on tailscale/derp/derp.go
pub use KeyCache;
pub use MAX_PACKET_SIZE;
pub use ;