Built a self-hosted messenger.
Encryption: X25519 key exchange, XChaCha20-Poly1305 for messages. New devices require approval from a trusted device before key exchange. Server never touches plaintext.
LAN mode: UDP broadcast on :45678, clients discover each other and exchange public keys automatically.
Stack: Flutter (Android, Windows, macOS, Linux).
Still in beta.
GitHub - wardcore-dev/onyx: Private and anonymous self-hosted messenger.
Private and anonymous self-hosted messenger. Contribute to wardcore-dev/onyx development by creating an account on GitHub.
GitHub (github.com)