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Events

Where we share what we learn

Stay connected with our team through events, talks, and workshops. Check out what’s coming next or browse recordings from past sessions.

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Meetup
Wrocław
Online
Callstack x Vercel AI SDK Meetup

Join the Callstack x Vercel AI SDK Meetup in Wrocław on March 4, 2026. Practical talks on building secure, production-ready AI apps.

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Insight Page
React Native
Talk
2/5/2026

JSX to Live Activity: The Story of Voltra

Learn how Voltra brings React to iOS Live Activities and Dynamic Island by translating JSX into SwiftUI through a custom React renderer.
Szymon Chmal
Insight Page
React Native
Meetup
1/29/2026

React Universe Meetup x Zalando, Berlin

React Universe Meetup lands in Berlin on January 29, 2026. Join Zalando and Callstack for an onsite React Native-focused evening.
Artur Morys-Magiera
Eugene Verichev
Tejas Kumar
Mohit Karekar
Insight Page
Testing
Talk
12/9/2025

Write Once, Test Everywhere: Cross-Platform Testing for React Native

Join Szymon Chmal at WarsawJS #133 to explore cross-platform testing in React Native with a new approach powered by React Native Harness.
Szymon Chmal
Insight Page
AI
Talk
12/5/2025

The Offline AI: On-Device LLMs in React Native With AI SDK

Learn how to run on-device LLMs in React Native using Vercel’s AI SDK from Michał Pierzchała's talk at DevAI by Data Science Summit.
Michał Pierzchala
Insight Page
AI
Talk
11/28/2025

How to Run Any LLM On-Device With React Native

In this talk, Szymon will show how to run LLMs directly inside React Native apps using an AI SDK that provides a powerful abstraction layer to simplify building AI applications. Join him as he explores react-native-ai, a library that enables local LLM execution.
Szymon Rybczak
Insight Page
Developer Experience
Talk
11/28/2025

How I Hacked React Native DevTools (And Built a Plugin Framework)

Learn how React Native DevTools work under the hood, and how to inject custom plugins with clean hooks and no forks.
Szymon Chmal
Insight Page
Brownfield
Talk
11/17/2025

Vega Developer Meetup

Learn how to integrate React Native into Android TV apps at the Vega Developer Meetup. Workshop, roadmap, and community talks, live in Munich.
Michał Pierzchala
Eric Fahsl
Artur Morys-Magiera
Insight Page
Testing
Talk
11/14/2025

Testing Native Modules Reliably With JavaScript

Learn how React Native Harness bridges the gap between mocking and E2E testing: real device tests, full native access, Jest-style simplicity.
Michał Pierzchala
Insight Page
Cross-Platform
Talk
11/12/2025

My First Few Months With Lynx.js

Is Lynx.js the next big thing in UI? Łukasz shares a newcomer's journey with the framework from TikTok's creators, revealing the good, the bad, and crucial lessons he learned.
Łukasz Chludziński
Insight Page
Brownfield
Talk
10/8/2025

React Everywhere: Bringing React Into Native Apps

Most teams use React on the web but still rely on native code or WebViews in their mobile apps. This talk explores how React Native can replace WebViews with minimal effort, allowing React to power both web and mobile.
Mike Grabowski
Insight Page
React Native
Conference
10/7/2025

React Conf 2025

We’re thrilled to announce that Callstack is once again co-hosting React Conf 2025 with Meta!
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Insight Page
Testing
Talk
10/4/2025

Write Once, Test Everywhere: Cross-Platform Testing for React Native

Cross-platform testing in React Native made simple: a lightweight architecture to run and extend tests on any JavaScript-powered platform.
Łukasz Chludziński
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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.

View all
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Article
2/18/2026

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.
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Article
2/17/2026

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.
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Article
1/29/2026

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.
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Article
1/28/2026

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.
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Article
1/20/2026

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.
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Article
1/16/2026

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
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Live Stream
Live Stream
2/12/2026

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.
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Live Stream
Live Stream
2/5/2026

Storybook Explained: From Basics to Advanced Workflows

Core Storybook concepts, stories and args, interaction testing, and how Storybook works in React Native projects.
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Live Stream
Live Stream
1/29/2026

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
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Podcast
2/17/2026

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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Podcast
1/12/2026

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.
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Podcast
12/17/2025

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.
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Tutorial
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.
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Tutorial
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.
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Tutorial
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.
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Tutorial
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.
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Tutorial
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.
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Tutorial
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.