Deep dives into mobile app engineering & system design
Learn how to use React Native's InteractionManager to schedule expensive tasks after animations, keeping UI fluid and responsive.
Compare WatermelonDB and SQLite for sync‑heavy React Native apps, and see a quick setup example.
Leverage a single codebase to power both mobile and web UIs using React Native Web inside a Yarn workspaces monorepo.
A quick guide to organizing a React Native codebase by feature, making it easier to share code in a monorepo and to scale teams.
Learn how the JavaScript Interface (JSI) and TurboModules let you bypass the bridge for faster native calls, and see a minimal TypeScript example.
Use React's useSyncExternalStore hook to bridge UI state between the JavaScript thread and Reanimated worklets, eliminating flicker and ensuring deterministic updates.
Learn how to use React Native's InteractionManager to postpone expensive calculations until after UI interactions, preventing frame drops and jank.
Learn how the JavaScript Interface (JSI) lets you call native code without the React Native bridge, cutting latency and improving UI responsiveness.
Reduce initial bundle size by lazily importing rarely used screens using React.lazy and Suspense in a React Native project.
Learn how a Yarn workspace monorepo lets you write a single UI component library that works in both React Native and Next.js, cutting duplication and keeping styles in sync.
Leverage React Query's prefetch capabilities to load data ahead of navigation, eliminating empty states and improving perceived performance in React Native apps.
Learn how to use React Native's InteractionManager to postpone expensive calculations until after animations and gestures, keeping the UI buttery smooth.
Learn how to use React Native's InteractionManager to postpone expensive calculations until after animations and gestures finish, keeping the UI buttery smooth.
Learn how React Native's TurboModules let you add native speed to hot code paths without refactoring your whole app.
Learn how to keep animations buttery‑smooth by offloading expensive calculations to InteractionManager, ensuring they run only after the UI settles.
Learn how to use React Native's InteractionManager to postpone expensive calculations until after animations, improving perceived performance.
A quick look at how Expo's EAS Update lets you push JavaScript and assets over‑the‑air, cutting release friction while keeping users on the latest code.
Learn how to add custom native code to an Expo‑managed app using Config Plugins, avoiding the need to eject while keeping OTA updates intact.
Learn how to run periodic background tasks in Expo to sync data even when the app is closed, using expo-task-manager and expo-background-fetch.
Learn how to combine Expo Updates with EAS to ship over‑the‑air patches without forcing users to reinstall, keeping your app alive during rapid iterations.
Learn how React Native's useSyncExternalStore hook can safely connect any external state source—like Zustand or a custom store—to React's concurrent rendering pipeline.
Compare Expo’s EAS Update with Microsoft’s CodePush for over‑the‑air releases, and learn a quick config tip to keep your bundle version in sync across platforms.
Learn how to schedule reliable background fetches in Expo apps using Task Manager, turning periodic data sync into a native‑level feature.
Learn how a Turborepo‑based monorepo lets you write UI components, types, and utilities once and reuse them across a React Native app and a Next.js web companion, keeping versioning and builds fast.
Use TypeScript's branded types to avoid mixing up identifiers (e.g., userId vs. postId) at compile time, reducing runtime bugs in mobile apps.
Learn how to structure a monorepo so React Native and web projects can import the same TypeScript UI components, reducing duplication and keeping styles in sync.
Learn how to defer loading of rarely used screens using React.lazy and React Navigation's lazy option, cutting initial bundle size and speeding up app start‑up.
Use TypeScript branded types to prevent accidental ID mix‑ups across entities in your React Native codebase.
Learn why Flipper’s network inspector is a game‑changer for React Native debugging and how to hook it up with Axios in minutes.
Learn how the JavaScript Interface (JSI) lets you call native code without the React Native bridge, cutting latency and boosting UI responsiveness.
Speed up initial bundle size by loading heavy screens only when needed using React.lazy and React Navigation's lazy option.
Leverage React Navigation's useFocusEffect to run side‑effects only when a screen is active, preventing costly work on background screens.
Learn how to offload expensive calculations until after UI transitions using React Native's InteractionManager, keeping animations buttery smooth.
Learn how to offload expensive calculations until after animations finish, keeping the UI buttery smooth in React Native.
Learn how to use React Native's InteractionManager to schedule expensive operations after animations and gestures, keeping the UI buttery smooth.
Leverage React Query's prefetch capabilities during navigation events to eliminate loading spinners and deliver instant data when a screen appears.
Learn how to schedule expensive tasks after UI interactions using React Native's InteractionManager, preventing frame drops and keeping animations smooth.
Speed up app start‑up by lazily importing rarely used screens instead of bundling them upfront.
Learn how to dynamically import screen components in React Navigation, reducing the initial bundle and speeding up app startup.
Learn how combining expo-dev-client with EAS Update lets you ship OTA updates without being limited to Expo Go, and how to configure them correctly.
Learn how TypeScript branded types prevent accidental ID mix‑ups, making your React Native code safer and more self‑documenting.
Learn how to use TypeScript's branded types to prevent accidental mixing of different ID strings, reducing runtime bugs in React Native apps.
Load heavy native modules only when needed using dynamic import, cutting down initial bundle size and improving cold‑start performance in React Native apps.
Learn how to offload expensive calculations until after UI interactions using React Native's InteractionManager, keeping animations fluid and reducing jank.
Compare Expo Application Services (EAS) cloud builds with local Metro bundling to decide when each approach maximizes speed, reliability, and CI integration.
Learn how to use Expo's BackgroundFetch and TaskManager to run periodic data syncs even when the app is closed, improving offline reliability.
Learn how to keep animations smooth by postponing expensive calculations until after interactions finish, using React Native's InteractionManager.
Learn how to use Expo's EAS Update for reliable over‑the‑air patches, configure runtime versions, and target release channels without a full rebuild.
Speed up app launch by loading screens only when they're needed using React.lazy and dynamic imports with React Navigation.
Learn how to ship critical bug fixes instantly with Expo Updates and EAS, avoiding the app store review cycle.
Learn how to schedule lightweight background work in Expo apps using expo-task-manager and expo-background-fetch, without ejecting or writing native code.
Learn how a Yarn workspace monorepo can let you write a single UI component library in TypeScript and reuse it on both React Native and the web, keeping typings and styles in sync.
Learn how to use React Native's InteractionManager to postpone expensive calculations until after UI interactions, keeping animations buttery smooth.
Learn how Metro's RAM bundles can split your JavaScript bundle into smaller modules that load on demand, dramatically reducing initial load time for React Native apps.
Leverage a monorepo to write a single TypeScript component that works in both React Native and Next.js, reducing duplication and keeping UI consistent.
Organize your React Native code by feature rather than type to keep the codebase maintainable as it grows.
Learn how to use React Native's InteractionManager to postpone expensive calculations until after UI interactions, keeping transitions buttery smooth.
Learn when to use React Native's TurboModules instead of classic Native Modules and how the new JSI bridge can shave milliseconds off your native calls.
Learn how to use React Native's InteractionManager to postpone expensive calculations until after UI interactions, keeping animations and gestures buttery smooth.
Use sql-template-strings to write safe, readable SQLite queries in Expo apps, keeping your offline data layer tiny and type‑friendly.
Learn how Expo's EAS Update lets you push JavaScript and asset changes over‑the‑air, cutting release cycles while keeping native builds stable.
A quick guide to turning on TurboModules and the Fabric renderer in React Native to cut bridge latency and improve UI responsiveness.
Learn how TurboModules and the JavaScript Interface (JSI) let you write faster, type‑safe native modules without the bridge overhead.
Use TypeScript branded types to prevent accidental ID mix‑ups across entities, improving type safety in React Native apps.
Learn how branded (opaque) types prevent ID mix‑ups in React Native projects, adding compile‑time safety without runtime overhead.
Organize your React Native code by feature rather than type to improve maintainability, reduce merge conflicts, and speed up onboarding.
Learn why creating new style objects inside a component causes needless re‑renders and how useMemo can keep UI snappy.
Learn how to defer loading of rarely used screens with React.lazy and React Navigation, cutting initial bundle size and speeding up app start‑up.
Learn how React Native's TurboModules replace the classic bridge, cut serialization overhead, and give you near‑native speed for native APIs.
Learn how to use Expo's EAS Update to push small, incremental over‑the‑air patches without rebuilding the whole binary.
Prevent excessive network traffic by debouncing input‑driven API calls with a tiny reusable hook.
Learn how to keep a single source of truth for UI components that work in both React Native and Next.js using a Yarn workspace monorepo and simple build tweaks.
Learn how to use InteractionManager to push expensive calculations off the UI thread, keeping animations smooth and responsive.
Learn how to keep a single source of truth for UI components across React Native and web by using Yarn workspaces, reducing duplication and easing maintenance.
Compare Expo's new EAS Update workflow with the classic expo-updates OTA approach and learn when each shines.
Learn how to schedule reliable background network calls in Expo using the Task Manager API, keeping data fresh even when the app is closed.
Organize a React Native codebase by features instead of layers to improve discoverability, enable independent testing, and simplify monorepo sharing of UI components.
Learn how to make your React Native app feel instantly responsive by applying optimistic updates with React Query, reducing perceived latency while keeping data consistent.
Learn how to schedule periodic background work in Expo apps using Task Manager, keeping data fresh even when the app is closed.
A quick guide to the subtle timing differences between useEffect and useLayoutEffect in React Native, and how the right choice can prevent UI flicker and layout bugs.
Leverage React Query's prefetch capabilities to load data before a user navigates, cutting perceived load times and improving UX in React Native apps.
Use React Query's prefetch capabilities to load data before a user navigates, eliminating loading spinners and improving perceived performance.
Learn how to enable seamless OTA patches in Expo apps using EAS Update, and why it beats the old expo-updates workflow.
Learn how to keep animations smooth by postponing expensive calculations until after UI interactions using React Native's InteractionManager.
Use React Query's prefetch capabilities in navigation listeners to load data before a screen mounts, eliminating loading spinners and improving perceived performance.
Delay heavy work until after animations finish by using InteractionManager, keeping the UI buttery smooth on both iOS and Android.
Learn how enabling Metro's RAM bundles can cut down JavaScript bundle size and improve app launch speed with a few config changes.
Learn how the JavaScript Interface (JSI) lets you call native code without the traditional React Native bridge, cutting latency and boosting UI responsiveness.
A quick look at the hidden costs of over‑relying on Expo Application Services (EAS) OTA updates and how to mitigate version‑drift issues.
Learn how to use React Native's InteractionManager to postpone expensive tasks until after animations and gestures complete, keeping the UI buttery smooth.
Leverage TypeScript to enforce compile‑time safety for React Navigation parameters, eliminating a common source of runtime crashes.
Discover how Jotai lets you manage isolated pieces of state with tiny atoms, cutting down on Redux boilerplate while keeping re‑renders predictable.
Leverage TypeScript generics to build reusable, type‑safe data‑fetching hooks with React Query, reducing boilerplate and catching API contract errors at compile time.
Learn how a couple of Babel tweaks—removing console statements and enabling inline requires—can shave megabytes off your RN bundle and speed up startup.
Leverage react-native-fast-image to cache remote assets, cut network churn, and keep scrolling buttery‑smooth on both iOS and Android.
A quick comparison of MMKV and AsyncStorage, showing why MMKV can dramatically speed up key‑value storage in React Native apps.
A quick look at why Hermes often outperforms JavaScriptCore in React Native apps and how to switch engines with minimal friction.
A quick comparison of two popular React Native secure storage options and guidance on when to choose each.
Learn how Reanimated 3 worklets let you execute animation logic directly on the UI thread, eliminating bridge overhead and delivering buttery‑smooth interactions.
A quick guide on how getItemLayout can eliminate layout passes in large FlatLists, keeping scrolls buttery‑smooth on low‑end devices.
Learn how Metro's inlineRequires feature can defer module evaluation, shrinking JavaScript bundle size and improving cold start performance in React Native apps.
A practical comparison of React Native and Flutter for mobile development � helping you pick the right tool based on your team, project, and timeline.
Expo removes most of the friction from React Native development. Here is how to bootstrap a production-ready app in minutes.
Comparing the three most popular state management approaches for React Native apps � with practical guidance on when to use each.
Real-world mobile users lose connectivity constantly. Here is how to architect a React Native app that works seamlessly offline.
A practical guide to deciding between MongoDB and a relational database � demystifying the NoSQL vs SQL debate with real use cases.
A practical guide to structuring navigation in React Native apps using React Navigation � covering common patterns and nested navigators.
Fetch, cache, and sync server data in React Native the right way � using React Query for loading states, error handling, and cache invalidation.
If you know React Native, picking up Next.js is natural � here is how the mental models map and where they diverge.
Promises, async/await, and common pitfalls � a practical async JavaScript guide written from a React Native perspective.