React Native, Flutter and shipping to the app stores.
How Hermes precompilation cuts React Native startup time, the bytecode format, and what you lose when you enable it.
A practical guide to measuring the real payload of your React Native or Flutter app, using tools and CI checks to enforce size budgets.
Read and symbolize native crash reports from iOS and Android, trace the common culprits behind EXC_BAD_ACCESS and SIGABRT, and fix them without writing native code.
Storing secrets with biometric protection: iOS Keychain+LAContext vs Android Keystore+BiometricPrompt, fallback flows, error handling.
How APNs and FCM tokens are generated, stored, refreshed, and invalidated, plus failure modes and production token hygiene across React Native and Flutter.
How Reanimated worklets execute animation logic on the UI thread, bypassing the JS bridge. Covers the worklet runtime, shared values, and common pitfalls.
Examine OTA update mechanics in React Native and Flutter: what ships through the app store, what bypasses review, and where the limits are.
Handling deep and universal links in React Native and Flutter without corrupting the back stack, losing state, or triggering duplicate screens.
Target the slowest phase of a React Native app launch with bundle preloading, Hermes flags, and lazy initialization to drive measurable cold start improvement.
