BUILDTOGETHER.SHIPFASTER.ZEROCONFLICTS.

Web App — Jul 30, 2024

320Active teams
99.97%Uptime
42msLatency p99

Real-time presence. Zero merge conflicts.

A real-time collaborative platform with presence awareness, live commenting, and version history. Built for teams who cannot afford to lose work.

Dashboard UI in use
Presence indicators update 10× per second — fast enough to feel live.
01
Rule to follow

Real-time sync without locking. Every keystroke is broadcast as a CRDT operation — no optimistic rollback, no merge dialogs, no lost work. Conflicts are mathematically impossible.

02
Rule to follow

Presence without noise. Seventeen cursors moving at once is anxiety-inducing. We designed ambient presence — you know others are there without being distracted by them.

03
Rule to follow

Version history as a first-class feature. Every session is snapshotted. Rolling back to any point in the last 90 days takes two clicks — no git, no exports, no support tickets.

The sync engine

CRDT operations are batched in 16ms frames and broadcast over WebSockets with a fallback to SSE. The server is stateless — any node can serve any client at any time.

Server infrastructure

Offline-first

Network goes down. Editor keeps working. Changes queue locally and replay cleanly when reconnected — whether that is 30 seconds or 30 minutes later.

Code running

Collaboration is a UX problem

The hardest part was not the sync engine. It was making shared work feel calm. Every technical decision was filtered through one question: does this reduce anxiety or add to it?

ReactCRDTsWebSocketsPostgresOffline-first
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