For the messenger: setup, identities, delivery, calls, and the relays that carry it.
- Messenger Guide — introductions, delivery, what the receipts mean
- Run a Messenger Relay — if you want to carry traffic rather than only send it
The messenger is the part of this project where “it seems to work” is the most dangerous phrase, because a message that is delivered unencrypted also looks delivered. If something about a conversation surprises you — an identity that changed, a receipt that did not arrive, a contact you did not add — say so here, with what you saw.
Relay operators and users share this category deliberately: most delivery problems are visible from exactly one of those two sides, and the other side never learns about them.