@supabase/realtime-js is a JavaScript/TypeScript client library that subscribes to real-time changes in your PostgreSQL database through Supabase's Realtime service. Developers use it to listen for inserts, updates, and deletes on specific tables and automatically sync those changes to their application without polling. It's useful for building collaborative features, live dashboards, chat applications, and any interface that needs to reflect database changes instantly.

etienne_supa, mandarini