React Universe Conf 2025 Keynote

Marc Rousavy joins Mike Grabowski to unpack VisionCamera v5, Nitro Modules, the constraints API, migration work, and what changed for React Native camera apps.

William Candillon talks about where Redraw fits next to Skia, from physics-based rendering to camera effects, AR, and new UI patterns.

React Navigation 8 improves typed hooks with screen-aware types, less boilerplate, and fewer unsafe casts in shared UI and nested navigators.

Join Callstack’s live stream on building a React Native app from the ground up using the TanStack toolbelt.

Lessons from React Universe Meetup x Zalando on React Native in production, covering brownfield performance, feed video, native API access, and on-device AI.

How Voltra enables Live Activities and Dynamic Island views using React without writing Swift. A deep dive into iOS constraints and architecture.

A recap of React Native 0.85, covering the new animation backend, DevTools improvements, and ecosystem takeaways.

A cross‑platform workaround to keep screens visible while <Activity mode="hidden"> unmounts effects on inactive screens by setting mode="hidden".

Set up a React Native monorepo with pnpm workspaces for mobile and Next.js web, including Metro fixes, hoisted node-linker, and shared packages.

Learn how to set up a React Native monorepo with Yarn workspaces for mobile and web, including Metro, Gradle, and shared packages.

What happens when you combine voice agents and teddy bears? A hands-on look at local-first systems, voice AI, and security lessons from poking real apps.

A deep look at how a single CSS feature moves through React Native’s New Architecture, from JavaScript styles to native rendering on iOS and Android.

Learn how React Native AI uses a unified provider model to switch between cloud and on-device LLMs without rewriting application logic, enabling reliable AI experiences online and offline.

Learn how on-device models in React Native can call tools, interact with external APIs, and return structured outputs you can use directly in application logic.

Learn how to run third-party on-device LLMs in React Native using MLC LLM. Choose your models, run them efficiently across platforms, and keep a unified JavaScript API with React Native AI.

Learn how to use Apple’s built-in Foundation Models in React Native apps, reduce memory usage, and enable fast, fully on-device AI with React Native AI Apple.

Learn why on-device AI matters for React Native apps, how local LLMs behave offline, and what problems React Native AI is designed to solve from day one.

Learn how to implement a React Native TurboModule on Android, from the TypeScript spec and Codegen to the Kotlin implementation and package registration.

Learn how JavaScript, native module, background, and main threads interact in React Native TurboModules, and how to use GCD queues to run async work safely in Swift.

Learn how to expose typed, immutable constants from a Swift TurboModule using Codegen, and get full end-to-end type safety between native and JavaScript.

Learn how to emit native events from a Swift TurboModule and subscribe to them in JavaScript, including proper memory management and Codegen integration.

Learn how to build a fully working TurboModule in Swift, integrate it with Codegen, and bridge it through Objective‑C inside an Expo app.