A ReMeet app is a web page plus a remeet.json manifest. It runs in an isolated frame inside the meeting — as a side panel or a shared stage — and talks to the meeting through a tiny SDK, within the permissions the person allowed.
<script src="https://sdk.remeet.video/v0.js"></script>
<script>
const app = await ReMeet.ready(); // meeting, me, participants, permissions
app.on('broadcast', (m) => …); // data from other copies of your app
app.broadcast({ step: 3 }); // to everyone in the meeting
app.notify('Done'); // ReMeet toast
</script>
Full documentation is coming to docs.remeet.video.