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Podcast

React Universe On Air

A podcast about building cross-platform apps with React and React Native, featuring practical lessons, forward-looking ideas, and talks with industry leaders.

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From Teddy Bears to Voice Agents: Kraen Hansen on Voice AI, Local-First & App Security

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.

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Meet your hosts

React Universe isn’t just their toolkit-it’s their day job, side project, and late-night Slack thread. Meet the engineers behind the mics.

Aleksandra Desmurs-Linczewska

Aleksandra Desmurs-Linczewska

Software Engineer

Aleksandra Pytko-Włodarczyk

Aleksandra Pytko-Włodarczyk

Marketing Lead & Podcast Producer

Mike Grabowski

Mike Grabowski

CTO & Founder

Łukasz Chludziński

Łukasz Chludziński

Software Engineer

Pick React Universe On Air format

Regular episodes

Our core series tackling technical challenges and best practices in React and React Native development.

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React Native At Scale

Stories from Fortune 500 and large companies that push React and React Native to its limits.

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Coffee Talks

Candid conversations on trends, challenges, and opportunities in the React and React Native ecosystem.

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Interviews

Conversations with influential builders, creators, and leaders across the React and React Native community.

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Hire us

Need React or React Native
expertise you can count on?

We’ve spent years building full-stack, cross-platform apps and solving tough technical challenges. How can we help you?

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Insights

Your next read or watch starts here

Stay up to date with our latest insights on React, React Native, and cross-platform development from the people who build the technology and scale with it daily.

A Practical Guide to React Native Monorepo With Yarn Workspaces

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

Agent Device: iOS & Android Automation for AI Agents

Agent Device is a lightweight CLI for AI-driven mobile automation on iOS and Android, with structured snapshots and deterministic replay.

Announcing AI SDK Profiler for React Native

Announcing the AI SDK Profiler plugin for Rozenite DevTools. Capture OpenTelemetry spans from the Vercel AI SDK and inspect AI requests across on-device and cloud providers.

Bringing CSS Clipping to React Native

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.

Introducing Brownie: Type-Safe Shared State for React Native Brownfield Apps

A type-safe shared state library for React Native brownfield apps. Brownie syncs native and React state from a single TypeScript schema.

Announcing: React Native Best Practices for AI Agents

We're turning React Native optimization knowledge into agent-ready skills (JS, native, bundling) mapped to FPS and TTI, built from real-world production work

Sparkling: A New Framework for Lynx

Join the Lynx team live as we explore Sparkling, its boundaries with Lynx, core features, and bootstrap a project from scratch.

Storybook Explained: From Basics to Advanced Workflows

Core Storybook concepts, stories and args, interaction testing, and how Storybook works in React Native projects.

Exploring Skills in Claude: A Live Walkthrough

Live experiments with Claude Skills in a React Native codebase, covering AI agents, Expo upgrades, and practical limits of automation

From Teddy Bears to Voice Agents: Kraen Hansen on Voice AI, Local-First & App Security

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.

Building v0 iOS and Fixing React Native Along the Way

A technical look at building v0 mobile with React Native and Expo, covering iOS-first decisions, native modules, and fixes pushed to React Native core. Featuring Fernando Rojo, Szymon Rybczak, and Oskar Kwaśniewski.

A (Secure) Christmas Carol: The Story of Npmezer Scrooge

A holiday story about npm audits, unpinned dependencies, and the real cost of ignoring JavaScript security warnings.

February 10, 2026

What Is the React Native AI SDK? A Complete Intro & Quickstart

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.

January 29, 2026

Implementing an Android TurboModule with Kotlin

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

January 19, 2026

Working with Different Threads in Swift TurboModules

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.

January 9, 2026

How to Add Type-Safe Constants to Swift TurboModules

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.

December 30, 2025

Adding Event Emitters to Your TurboModule in Swift

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

December 22, 2025

Writing Your First TurboModule in Swift

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