demos
Three apps on one engine — one keeps a query correct under a firehose of reads, one syncs optimistic writes across everyone in the room, and one is a full slides editor shipped on Rindle. All run on the real engine. Pick one.
reads · at scale
The real Wikimedia firehose streams into one query that stays correct edit-by-edit — no refetch, no diffing. Two recency boards mirror the same stream, grouped by page and by editor.
writes · collaboration
The other half of the engine: optimistic mutations that apply instantly and rebase on confirmation, multi-user sync, and a rejection path you can watch snap back. Open it in two windows and edit.
writes · a real app
A full presentation editor built on Rindle — a Keynote-style canvas you drag, resize, and rotate objects on, plus an AI chat that streams into the deck. Not a demo: a shipped app that leans on the parts of the engine the other two never touch.