How to move from spreadsheets to a database
The signs a spreadsheet has outgrown itself, and how to move without losing the flexibility that made it work.
← All postsEngineering
Scaling our sync engine to millions of edits
How CRDTs and a lean relay keep collaboration fast at scale.
EngineeringS
Real-time collaboration is hard the moment two people type at once. We use CRDTs so edits merge cleanly, even offline, with no central lock.
A lightweight relay fans changes out to every client in milliseconds, and local-first storage means the app stays responsive regardless of network.
The result: documents that feel instant, whether it’s two people or two hundred.
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