const room = realtime.channel(`project:${projectId}`) room.presence.track({ name: user.name, cursor: null })room.presence.onChange((people) => showAvatars(people))

Broadcast

Send short-lived events, like cursor positions or typing indicators, that don’t need to be stored.

TypeScript

room.broadcast("cursor", { x, y })room.on("cursor", ({ x, y }, from) => moveCursor(from, x, y))

Throttle cursors

Broadcast cursor positions at most every 50ms to stay well under channel limits.

Subscriptions

Writing functions

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