The development of scalable video conferencing applications often begins with WebRTC's peer-to-peer setup, but scalability challenges necessitate the use of Selective Forwarding Units (SFUs) to manage data transmission and bandwidth efficiently. Cloudflare's Orange Meets, an open-source video chat application, integrates SFUs and emphasizes privacy through end-to-end encryption (E2EE), implemented using Messaging Layer Security (MLS), a standardized protocol for secure group communication. Unlike traditional methods, Orange Meets' E2EE design considers the ephemeral nature of video calls and uses a designated committer algorithm to manage group membership securely, verified with TLA+ for protocol correctness. The system also addresses potential security concerns, such as monster-in-the-middle attacks, by incorporating safety numbers for cryptographic state verification and exploring future enhancements like Web Application Manifest Consistency for preventing malicious JavaScript. This innovative approach allows for secure, scalable video conferencing without extensive server modifications, showcasing Cloudflare's commitment to privacy and open-source development.