live-notes

Plain-text notes several people edit at once. Each note is one Durable Object, which orders every edit and passes it on to the other editors over WebSockets.

How it works

• [[conflict-strategy]]: how two people typing at once end up with the same text.
• [[note-room]]: the Durable Object behind a note, its storage, and hibernation.
• [[wire-protocol]]: the messages on the socket.
• [[snapshots]]: the copy of every note in R2 every 100 versions, and how to read them.

Decisions

• [[0001-single-sequencer-per-note]]: the room is the only place edits are ordered.
• [[0002-drop-inserts-inside-concurrent-deletes]]: the one rule that keeps the transform small.
• [[0003-snapshots-in-r2]]: history lives in R2, not in the room.

Guides

• [[local-dev]]: run it on your machine, open two tabs, and watch the edits cross.