Zerion is a messenger built around one idea: there should be nothing to hand over, ban, or breach. Everything runs over Tor including voice and video calls. No phone number, no email, no central server. Your contacts are onion addresses. Post-quantum triple ratchet on every message. Dual profiles for plausible deniability. Encrypted local storage with anti-forensics. Public and private channels. Account backup encrypted with Argon2id and AES-256-GCM, transferable over Tor. Open source