Rethinking YouTube Co-Viewing: Frictionless Sync in Under 24 Hours

Most watch-together platforms force users off YouTube—a fundamental UX mistake that kills spontaneity. By building the feature directly into the browser via Chrome extension and leveraging Supabase Realtime, this project eliminates context-switching entirely. It's a case study in how serverless platforms now enable individual developers to ship production-grade, real-time features in hours instead of weeks.