Supabase Realtime Has 3 Primitives. Most Devs Only Use One | Eddie Jaoude, PayPal

In this talk, Eddie Jaoude, a Dev Advocate at PayPal, presents a detailed exploration of Supabase Realtime by stress-testing it with 160 concurrent players. The session covers key primitives such as Postgres Changes, Presence, and Broadcast, explaining how each works and providing practical code examples for building a live multiplayer leaderboard. Eddie highlights critical edge cases often overlooked in tutorials, including fire-and-forget behavior and the impacts of WebSocket issues. He advocates for a transition from polling to real-time solutions, showcasing how Supabase offers a lighter alternative to Socket.IO.