
Case study summary
What was the challenge?
Real-time presence, cursors, and document updates had to feel instant without data loss when networks fluctuated.
What solution was delivered?
CRDT-backed synchronization, payload batching, and UX that always showed sync and conflict state clearly.
What results were achieved?
Users reported reliable collaboration with fewer sync-related support tickets after launch.
Challenge
Real-time presence, cursors, and document updates had to feel instant without data loss when networks fluctuated.
Solution
CRDT-backed synchronization, payload batching, and UX that always showed sync and conflict state clearly.
Implementation process
- Prototyped sync strategy with the client's backend team.
- Built presence indicators and optimistic UI with safe rollback.
- Stress-tested concurrent editors in staging.
- Documented operational limits and monitoring hooks.
Technology stack
- React
- WebSockets
- CRDT
- TypeScript
Results
Users reported reliable collaboration with fewer sync-related support tickets after launch.
Key metrics
- Update latency
- Sub-second in testing
- Support load
- Fewer sync tickets
- Architecture
- CRDT + WebSockets
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