Syna — offline-first LAN messenger. Kotlin Multiplatform, end-to-end encrypted (X25519 + AES-256-GCM), burn-after-reading, group chat, self-hosted server. GPL-3.0.
android kotlin windows macos security privacy encryption offline-first lan messenger p2p self-hosted instant-messaging gpl e2ee end-to-end-encryption private-server kotlin-multiplatform compose-multiplatform nusv-project
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Updated
Sep 18, 2026 - Kotlin