Visual protocol guide
Yakr v1.0 reference design across pairing, delivery, and post-quantum cryptography. For normative requirements see thespec on GitHub.
Guide sections
Overview & actors
Clients, mailbox relays, entry relays, and rendezvous — who trusts what.
End-to-end lifecycle
Invite, safety code, pairing handshake, profiles, send, and fetch.
Delivery & relays
Single-hop, two-hop onion, path rotation, and direct P2P fallback.
Cryptography
Ed25519, X25519, ML-KEM-768, double ratchet, and HKDF domains.
Wire examples
Representative CBOR blobs, HTTP shapes, and CLI flows.