Mezon

Mezon is a live, work, and play platform for building custom spaces where people talk, play, and hang out. It claims sub-millisecond response times and support for millions of concurrent connections, aiming at the gap between a chat app fast enough for gaming and one an organization can run at scale.

That performance comes from owning the hot path end to end. The Android and iOS clients are native rather than hybrid, the desktop app is Rust and renders directly on the GPU, and the server stack is written in C over a custom WebRTC SFU, a C11 media engine, io_uring, and a binary data plane rather than generic HTTP and WebRTC middleware.

Features cover the communication layer and everything around it.

• Messaging: Markdown rich text with threads, reactions, and file sharing up to 500MB.
• Voice and video: HD calls for up to 1000 users, with screen sharing, recording, and streaming.
• Security: end-to-end encryption on messages, voice and video, a zero-knowledge architecture, and XSS protection.
• AI features: content moderation, real-time translation across 100 languages, and auto-generated meeting summaries.
• Organization: custom roles with granular permissions, notification filtering, and event scheduling with RSVPs.
• Extensibility: REST and WebSocket APIs, a bot framework with SDK support, and more than 100 integrations.

This repository is the web client, an Nx and React monorepo that starts with a yarn install and a dev command on port 4200. The desktop, iOS, Android, SFU, media engine, and protocol layers each live in their own repository, with builds published for every platform.