Citadel Dispatch

CD196: EVGENY POBEREZKIN - SIMPLEX PRIVATE CHAT

14 snips

Mar 20, 2026

Evgeny Poberezkin

Evgeny Poberezkin, founder of SimpleX Chat and designer of the SimpleX transport protocol, builds privacy-first, trust-minimized messaging. He explains SimpleX’s connection-addressing transport, why MLS and Signal models fall short for huge groups, plans for scalable channel relays to rival Telegram, and how channel economics can fund decentralized infrastructure.

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ANECDOTE

Podcast Setup Happened Over SimpleX

Evgeny found Odell via a SimpleX address on Odell.xyz and messaged him directly on SimpleX.
They then set up the podcast and noted voice calls on SimpleX were working well for the interview.

ANECDOTE

Routers Run On Very Low Resources

A low-traffic SimpleX router can run on a single-core VM with ~512MB RAM; high-traffic setups use Postgres for persistence.
Evgeny notes routers can handle millions of messages and many operators already migrated to Postgres.

INSIGHT

Channels Use Relay Clients For Scale

For large channels SimpleX will add chat relays that rebroadcast so broadcasters send only to relays, not every subscriber.
End-to-end encryption is preserved between relay and participant; relays act as special clients on the network.

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