Realtime features usually mean one of two things: paying for Firebase, or wrestling with WebSocket servers at 2 AM. Today we're doing neither. We're going to build a live chat app where messages appear instantly across all connected browsers — using PocketBase Cloud for the backend and React for the frontend. No servers to configure, no WebSocket code to write. PocketBase handles realtime over Server-Sent Events (SSE) , and the JS SDK wraps it in one function call. Total time: about 5...