Engineering insights, product updates, and lessons learned from shipping software at Neural Heads.
Background jobs fail in the dark. Sifting through logcat and Xcode console output to diagnose missed syncs, constraint timeouts, and silent coroutine cancellations is painful. Here is how we built real-time telemetry, cold-launch event replay, and an on-device Compose Multiplatform inspector into KMPWorker.
Mobile networks drop unpredictably, yet background sync cannot afford lost mutations. Here is how we engineered KMPWorker's offline-first sync engine: durable SQLite task buffering with SQLDelight, cross-platform network state observers across Android and iOS, and an experimental Directed Acyclic Graph (DAG) task runner for complex dependency pipelines.
Android and iOS handle background execution in fundamentally different ways. We built KMPWorker — an open-source Kotlin Multiplatform library — to give shared Kotlin code a single, unified API over both WorkManager and BGTaskScheduler. Here's the architecture, the trade-offs, and where it gets complicated.
What we learned shipping production systems that handle millions of requests — architecture patterns, failure modes, and the tools that saved us.
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