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Live from the React Universe

Webinars and live streams on React, React Native, and AI engineering. Join live sessions or watch technical demos and discussions on demand.

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AI
11/12/2026
Mobile Development, Plugins & AI-Powered Workflows

Join Kewin Wereszczyński and Hanno Gödecke on November 12 for live demos and a discussion of the Mobile Dev plugin and AI-powered mobile workflows.

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AI
11/12/2026

Mobile Development, Plugins & AI-Powered Workflows

Join Kewin Wereszczyński and Hanno Gödecke on November 12 for live demos and a discussion of the Mobile Dev plugin and AI-powered mobile workflows.
Kewin Wereszczyński
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AI
10/15/2026

Who Left the Agents Running? React Native Software Factories

Join Kewin Wereszczyński and Szymon Chmal to explore what can go wrong in a React Native software factory overnight and the controls that keep agents on track.
Kewin Wereszczyński
Szymon Chmal
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AI
10/1/2026

Can Jev Make AI Agent Decisions Faster?

Explore Jev with Kewin Wereszczyński and Szymon Chmal: how it works, its approach to faster agent decisions, and possible local alternatives.
Kewin Wereszczyński
Szymon Chmal
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AI
8/27/2026

Graph Agentic Coding Extends AI Workflows

How connected state, retrieval, memory, and verification carry coding agents across complex, multi-step workflows. Kewin Wereszczyński and Lech Kalinowski discuss the structures that let agents plan, retrieve context, use tools, and keep working across longer tasks.
Kewin Wereszczyński
Lech Kalinowski
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AI
8/13/2026

What Apex shows about React Native AI models

See how Apex, Callstack's React Native model, compares with frontier models on navigation, animations, async state, and performance-heavy UI work.
Kewin Wereszczyński
Szymon Chmal
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AI
7/30/2026

How We Built a React Native News Agent With Eve

See how we built and deployed an Eve agent that tracks React and React Native repositories, filters commit noise, and publishes daily Slack updates.
Kewin Wereszczyński
Hur Ali
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Testing
7/21/2026

Behavior Review for AI-Native Delivery

AI can increase code output faster than teams can verify the real app. See why behavior review matters before merge.
Michał Pierzchala
Piotr Miłkowski
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AI
7/16/2026

How to Teach Your Own AI Model, Part 2: What Should You Build First?

Explore practical AI model training, from choosing a first project and preparing data to fine-tuning locally and evaluating synthetic data.
Kewin Wereszczyński
Piotr Miłkowski
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AI
7/2/2026

Building AI Agents With Eve: Tools, Skills, and Evals

Learn how Eve helps structure AI agents with tools, skills, sandboxes, local models, HTTP channels, and evals.
Kewin Wereszczyński
Artur Morys-Magiera
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AI
6/18/2026

Training AI Is More Than Feeding It the Internet

A Live Stream with Kewin Wereszczyński and Piotr Miłkowski on AI training, datasets, tokenization, alignment, and why models infer patterns rather than understand meaning.
Kewin Wereszczyński
Piotr Miłkowski
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AI
5/28/2026

Redraw and the Future of 2D Graphics on WebGPU

Join Callstack engineers Szymon Chmal and Kewin Wereszczyński on May 21 at 5 PM to explore Redraw, a new 2D graphics library for WebGPU.
Kewin Wereszczyński
Szymon Chmal
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AI
5/14/2026

Testing AI Agent Skills Reliably With Skill Gym

Learn how Skill Gym helps test, validate, and improve AI agent skills with repeatable workflows, assertions, and model-aware feedback.
Kewin Wereszczyński
Szymon Chmal

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Nov 12Live Stream

Mobile Development, Plugins & AI-Powered Workflows

Join Kewin Wereszczyński and Hanno Gödecke on November 12 for live demos and a discussion of the Mobile Dev plugin and AI-powered mobile workflows.

Build, Launch, and Maintain: The Business Case for a Software Factory

Nov 10Article

Build, Launch, and Maintain: The Business Case for a Software Factory

Explore an anonymized software factory business case, its delivery workflow, and the staffing assumptions behind a projected 65% reduction in total costs.

Harness Engineering: Context, Skills, and Reliable AI Workflows

Nov 10Podcast

From Prompts to Harnesses: Building Reliable AI Workflows

Amazon’s Anisha Malde joins Łukasz Chludziński to discuss harness engineering, agent skills, and how AI is changing cross-platform development.

Building a Software Factory: Write Specs an Agent Can Build From — cover

Nov 6Article

Building a Software Factory: Write Specs an Agent Can Build From

Learn how to research requirements, resolve open decisions, and write testable specs that AI coding agents can implement without the planning conversation.

Large-Scale Migrations With Coding Agents: Planning, Verification, and Rollback — cover

Nov 4Article

Large-Scale Migrations With Coding Agents: Planning, Verification, and Rollback

Plan codebase migrations with coding agents using reviewable requirements, verification checks, staged rollouts, and defined rollback criteria.

Conversational Banking: From Customer Questions to Authorized Actions — cover

Nov 2Article

Conversational Banking: From Customer Questions to Authorized Actions

Explore conversational banking architecture through a card-dispute example, covering tool access, authorization, execution, observability, and human handoff.

How AI Agents Can Cut Manual QA by 30% — cover

Oct 30Article

How AI Agents Can Cut Manual QA by 30%

Explore an agentic QA workflow targeting 30% less manual effort across mobile, web, and TV, with test selection, failure triage, and validation.

Building a Software Factory: The Night My Agents Waited for Me — cover

Oct 28Article

Building a Software Factory: The Night My Agents Waited for Me

Learn how permissions, review limits, and missing product decisions stalled two overnight coding agent runs, and how their maintainer revised the workflow.

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Oct 15Live Stream

Who Left the Agents Running? React Native Software Factories

Join Kewin Wereszczyński and Szymon Chmal to explore what can go wrong in a React Native software factory overnight and the controls that keep agents on track.

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Oct 14Podcast

When Coding Gets Faster, What Breaks Next?

Matt Hargett explains how AI moves bottlenecks across testing, deployment, infrastructure, support, and the rest of software delivery.

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Oct 13Podcast

MCP and Supervisor Agents in eBay's Monitoring Workflow With Leonel Candido da Silva

Leonel Candido da Silva explains eBay's agentic monitoring workflow: specialized agents, MCP, PagerDuty reports, and plans to learn from past incidents.

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Oct 7Talk

Automating Mobile QA with Cloud Agents

Michał Pierzchała shows how cloud-based QA agents can test real iOS and Android user flows and bring screenshots, recordings, and logs into pull requests.

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Mar 19Tutorial

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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Mar 12Tutorial

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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Mar 5Tutorial

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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Feb 24Tutorial

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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Feb 10Tutorial

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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Jan 29Tutorial

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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Jan 19Tutorial

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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Jan 9Tutorial

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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Dec 30Tutorial

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.

Writing a Swift TurboModule in React Native

Dec 22Tutorial

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.