Ala Obeidat adds E2EE handshake and TURN rotation to Alfajer
This GitHub repository details "Alfajer," a private 1-to-1 video/audio calling Progressive Web App (PWA) built using WebRTC for media transmission and a custom Bun+ElysiaJS WebSocket signaling server. The architecture emphasizes privacy with no persistent storage, logs, or accounts, and features end-to-end encryption notes via RTCRtpScriptTransform, though it's currently disabled pending a cross-browser capability handshake. Recent commits detail a "5-tier UX overhaul" and automation for TURN secret rotation.
Key Takeaways
- Alfajer is built as a 1-to-1 video/audio calling PWA on WebRTC, with Bun + ElysiaJS handling WebSocket signaling.
- The app keeps rooms in memory only: no database, no Redis, no log files, and no account system.
- Recent commits describe a 5-tier UX overhaul, including quality pills, speaking indicators, toasts, install prompts, chat, and screen share.
- A new TURN secret rotation script is designed for a 90-day cadence and updates both /etc/turnserver.conf and apps/signaling/.env.
- End-to-end encryption uses RTCRtpScriptTransform and is gated by an e2eeSupported capability handshake between peers.
Why It Matters
The immediate signal is that Alfajer is moving from a basic private calling demo into a more complete calling stack, with explicit UX polish, chat, screen share, and automated TURN credential rotation. That matters in the streaming delivery and real-time comms ecosystem because the repository pairs privacy claims with concrete operational details: in-memory rooms, no logs, and negotiated E2EE on top of WebRTC’s DTLS-SRTP. The clearest next marker is whether the RTCRtpScriptTransform path stays disabled only for compatibility, or appears enabled across the latest Chrome and Safari browsers described in the README.
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