Offline-First Mobile: Building for the Dead Zone

Change queues with retry, batched uploads, resumable transfers for photos, and server-side idempotency absorbing the duplicates that reconnection storms create.

Sync status visible, queued items inspectable, failures actionable — users forgive offline; they don't forgive silent data loss.

Skipping the discipline this article describes until an incident, audit, or stalled project forces it — every practice above is cheaper adopted early than retrofitted under pressure.