The React Native Show Podcast

About The React Native Show Podcast

React Universe On Air is your go-to podcast about building cross-platform apps with React and React Native, featuring practical lessons, forward-looking ideas, and talks with industry leaders.

Publisher

Callstack

Category

technology

Language

en

Explicit

No

First episode

29 Jul 2020

Latest episode

14 Oct 2026

Latest episodes

155 episodes in the feed.

1. 

   14 Oct 2026

   When Coding Gets Faster, What Breaks Next? | React Universe On Air

   AI can generate code faster than your team can review, test, or release it. That extra output can turn the next stage of software delivery into a bottleneck. Matt Hargett, Consulting Principal Engineer at Callstack, joins Łukasz Chludziński to examine how AI agents change the software development lifecycle (SDLC). Drawing on nearly 30 years of experience, from QA at McAfee to agent workflows today, Matt explains how to find the current constraint and anticipate where work will pile up next. In this episode, we discuss: ➡️ Why an on-time release can still lose money through support and infrastructure costs ➡️ How to give agents goals, context, and explicit quality expectations ➡️ How coverage-guided fuzzing can become an overnight testing and repair loop ➡️ How deployment bottlenecks grow release batches, and where phased rollouts and over-the-air updates fit ➡️ When to rethink Jira tickets and handoffs between teams ➡️ How to measure whether AI adoption improves delivery through support load, uptime, and production feedback Which part of your delivery process would struggle if coding got twice as fast? Share your experience in the comments, and subscribe for more React Universe On Air conversations. Check out episode resources on our website ➡️ https://clstk.com/4yF4yjl Catch more React Universe On Air episodes 🎧 https://clstk.com/4B1G9q4 Sign up for our newsletter ✉️ https://clstk.com/3VsrLXB Follow us on X 🐦 https://x.com/callstackio Chapters: 00:00 Faster coding, same deployment bottleneck 00:54 Meet Matt Hargett 02:07 QA at McAfee in 1997 07:19 Product economics and estimation 11:49 Mapping the SDLC in the AI era 16:25 Shipping, quality, and operating costs 22:34 Delegating to agents: goals and guardrails 25:21 Coverage-guided fuzzing explained 28:06 Overnight testing and repair loops 30:06 How agents change engineering roles 36:55 Do agents still need Jira tickets? 44:16 Using customer pain to prioritize improvements 49:41 Finding your next delivery bottleneck 54:07 Phased deployments, staging, and telemetry 57:06 Examining how teams really work 01:01:18 Improving the SDLC incrementally 01:03:06 Measuring outcomes and getting outside help 01:06:52 Closing thoughts

2. 

   7 Sept 2026

   Browser AI, WebGPU, and the Road to On-Device Agents With Nico Martin | React Universe On Air

   Many AI features in web apps send the user's audio, images, or text to a server and wait for the result. That adds network latency, moves data off the device, and ties the experience to a connection. Transformers.js gives developers another option: run the model in the browser. In this episode, Mike Grabowski speaks with Nico Martin, Open Source ML Engineer at Hugging Face, about what browser AI can do today. They break down the Transformers.js pipeline API, ONNX Runtime, WebGPU acceleration, model downloads, browser caching, CPU fallbacks, and performance across devices. Nico explains when local inference can beat a server round trip, why model size and hardware variation shape the user experience, and how browser code can handle parts of an agent workflow. He also shares early work on structured output and a custom WebGPU inference engine, where current experiments point to 5x to 10x speedups. For developers deciding which AI tasks belong in the browser and which need the cloud, this episode maps the tradeoffs through speech recognition, background removal, embeddings, local tool calling, and on-device agents. Check out episode resources on our website ➡️ https://clstk.com/4zMwzq9 Catch more React Universe On Air episodes 🎧 https://clstk.com/4zNCV8W Sign up for our newsletter ✉️ https://clstk.com/4h2b8Ks Follow us on X 🐦 https://x.com/callstackio Chapters: 0:00 Welcome to React Universe On Air 1:04 Nico Martin's work at Hugging Face 2:04 What Transformers.js is 3:30 Browser AI beyond large language models 6:00 Bringing Python ideas into a JavaScript API 10:08 How the Transformers.js pipeline API works 14:23 Choosing compatible models and architectures 15:46 Why Transformers.js uses ONNX Runtime 19:01 CPU inference, WebGPU, and browser coverage 22:57 Model downloads, browser caching, and UX 28:28 Startup time and performance across devices 30:57 Why Transformers.js focuses on the browser 34:07 What developers misunderstand about browser AI 38:44 Building AI agents in the browser 43:19 Local fallbacks and hybrid AI 44:28 The browser AI roadmap 47:04 Hugging Face's custom WebGPU inference engine 50:57 Why speedups matter on constrained hardware 52:07 Nico's favorite browser AI use cases

3. 

   4 Aug 2026

   VisionCamera V5 With Marc Rousavy | React Universe On Air

   VisionCamera v5 was five years in the making, and in this episode, Marc Rousavy joins Mike Grabowski to explain what changed, why v5 is more than a version bump, and how Nitro reshaped the foundation of one of the most widely used camera libraries in React Native. They cover the bridge and JSI limitations that pushed VisionCamera toward a new architecture, the move to Nitro Modules, and the API decisions behind v5. The conversation also gets into the new constraints model, output objects, in-memory photo handling, barcode scanning, migration from v4, and the testing work needed to make camera features hold up across real devices. If you build React Native camera apps, this episode is a detailed look at the engineering behind VisionCamera v5 and the decisions behind making complex camera features easier to ship and maintain. Check out episode resources on our website: https://clstk.com/3Rj0dlN Catch more React Universe On Air episodes: https://clstk.com/45ypLys Sign up for our newsletter: https://clstk.com/4bktu6f Follow us on X: https://x.com/callstackio Chapters: 0:00 Welcome to React Universe On Air 2:07 What VisionCamera is today 4:51 Barcode scanning and the new Data Scanner library 7:25 How VisionCamera helped shape Nitro 10:55 Frame processors, C++ glue, and the old JSI era 18:56 What is actually new in VisionCamera v5 21:45 The constraints API explained 30:12 Why third-party camera apps still struggle 33:29 The new output system and custom outputs 37:31 Imperative API, hooks, and components 39:01 Migrating from v4 to v5 43:25 AI, agents, and building VisionCamera v5 45:33 Testing, stability, and what comes next 48:25 Advice for teams building camera apps 50:50 Why web support is not on the roadmap

Who has been a guest on The React Native Show Podcast

Names identified in recent episode analyses. Showing up to five guests.

• Michał Pierzchała
• Łukasz Chludziński
• Mustafa Ali
• Zack Jackson
• Lorenzo Sciandra

Reach and audience

Public platform figures. Ratings count people who left a rating, not total listeners.

Apple Podcasts (US)

5.0 / 5

3 ratings

Spotify

5.0 / 5

19 ratings

Podcast Authority Score: 43 / 100

A composite of feed quality, social presence, YouTube performance and engagement. Read the methodology.

Quality

65

Social presence

0

YouTube

0

Engagement

51

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