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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.

Conference
Warsaw | Poland
Online
Agent Conf

Join 500+ engineers in Warsaw Sept 17-18 2026 for Agent Conf. Learn agentic development, orchestration, and AI-driven workflows.

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Talk
Miami, United States
Online
Ambient Generative AI: Deploying Latent Diffusion Models on Mobile NPUs

Join Lech Kalinowski at AI Engineer Miami on April 20–21 for a talk on running offline latent diffusion models on mobile NPUs.

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Talk
Florida, United States
Online
State of Brownfield in React Native

A practical look at Brownfield React Native adoption in mature native apps, architecture, tooling, and real-world tradeoffs.

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Talk
Florida, United States
Online
Shipping iOS Live Activities with React: The Voltra Story

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

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Insight Page
AI
Meetup
3/5/2026

OpenAI Codex Community Meetup - Wrocław

Join Wrocław’s first official OpenAI Codex meetup on March 5, 2026. Meet and connect with developers building with Codex.
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Insight Page
AI
Meetup
3/4/2026

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.
Szymon Chmal
Dom Sipowicz
Jakub “Zaiste” Neander
Michał Miszczyszyn
Insight Page
AI
Talk
3/4/2026

The Safe Detonation Chamber: Building AI You Can Actually Ship

How to design production AI systems using Vercel AI SDK, Workflows, and Sandbox , covering vendor lock‑in, long‑running workflows, and secure code execution.
Szymon Chmal
Insight Page
AI
Meetup
3/3/2026

OpenAI Codex Community Meetup - Berlin

Join Berlin’s second official OpenAI Codex meetup on March 3, 2026. Live demos, product updates, and real-world coding workflows.
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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
Talk
1/29/2026

LLM Inference On-Device in React Native: The Practical Aspects

A practical look at reliability, performance, libraries, and tradeoffs when running LLM inference locally in React Native apps.
Artur Morys-Magiera
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
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
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
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
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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.

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Article
3/18/2026

A Practical Guide to LLM Model Naming Conventions

Learn how to read LLM naming conventions and choose the right model for your hardware. Discover what Q4, INT8, GPTQ, and GGUF mean and why models appear in multiple variants.
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Article
3/13/2026

Handling Navigation in React Native Brownfield Apps

Learn how to connect React Native and native navigation using a typed bridge with @callstack/brownfield-navigation.
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Article
3/5/2026

Announcing React Native Evals

We built an open-source benchmark to measure how AI coding models handle real React Native tasks, such as animations, async state, navigation, and more.
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Article
3/5/2026

Keeping Screens Visible With <Activity mode="hidden">

A cross‑platform workaround to keep screens visible while <Activity mode="hidden"> unmounts effects on inactive screens by setting mode="hidden".
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Article
3/3/2026

Building Apps Where AI Generates the UI

Most AI apps stop at chat. This article explores generative UI: letting the model describe the interface at runtime and rendering it dynamically in React using JSON Render. Includes architecture, code examples, and a real project case study.
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Article
2/27/2026

Sparkling: The Missing App Layer for Lynx.js?

A hands-on look at Sparkling for Lynx.js: CLI, native navigation, and the tooling layer that turns Lynx into a full mobile app framework.
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Live Stream
Live Stream
3/19/2026

Agent Device, AI workflows, and mobile testing in practice

A discussion on Agent Device, AI-driven workflows, and testing mobile apps using simulators and accessibility data.
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Live Stream
Live Stream
3/12/2026

React Native Evals: Measuring AI Code Quality in Practice

React Native Evals introduces a data-driven way to measure how AI coding models perform on real React Native development tasks.
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Talk
Talk
3/4/2026

The Safe Detonation Chamber: Building AI You Can Actually Ship

How to design production AI systems using Vercel AI SDK, Workflows, and Sandbox , covering vendor lock‑in, long‑running workflows, and secure code execution.
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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
March 19, 2026

The Hard Way vs. The React Native AI SDK Way: Stop Writing Custom Modules for Every Model

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.
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Tutorial
March 12, 2026

Build Smarter Apps: Tool Calling & AI Orchestration Explained

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.
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Tutorial
March 5, 2026

MLC LLM + React Native: On-Device AI Without the Pain

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.
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Tutorial
February 24, 2026

Intelligent Fallbacks with Apple Intelligence in React Native

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.
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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.