implementing-realtime-features

You sync live updates across browser tabs by establishing Supabase Realtime subscriptions via postgres_changes and bridging events to an EventBus for cross-tab synchronization, ensuring all open dashboards reflect current state immediately.

The best way to implement ephemeral presence and cursor sharing is by using Supabase broadcast channels to transmit ephemeral state across devices. This approach supports collaborative editing on shared canvases without persisting temporary cursor data.

An EventBus bridges realtime events to a TransportManager by routing incoming Supabase Realtime payloads through an internal event system, enabling transport-based synchronization across multiple devices and maintaining consistent live widget updates.

Yes, you must manually handle unsubscribe logic when setting up Supabase Realtime subscriptions to prevent memory leaks. Proper unsubscribe handling ensures ephemeral presence and cross-tab event listeners are cleaned up correctly when no longer needed.

Yes, you can use Supabase Realtime broadcast channels for live chat and collaborative widget updates. Broadcast channels transmit ephemeral presence and cursor sharing data, while postgres_changes handle persistent data updates for shared canvases.