Tag

#sync

3 pieces filed under “sync”.

Engineering · 14 Aug 2026 · 11 min

Local-first sync engines: what we learned shipping one

Field notes from building a real sync engine: CRDT vs last-write-wins in practice, conflict UX that doesn't panic users, and when to skip it all.

local-firstsyncCRDT

Engineering · 14 Aug 2026 · 10 min

Queuing writes for a flaky world

Offline writes done honestly: outbox queues, idempotency keys, optimistic state that admits it's pending, conflict surfacing, and deciding which features truly need them.

architectureofflinesync

Engineering · 20 June 2025 · 10 min

Local-first on the web: sync engines, honestly

What local-first architecture actually costs and buys: IndexedDB patterns, CRDT trade-offs, schema migrations, sync-status UX, and when server-first is simply right.

architectureofflinesync