React Universe On Air

Rudrank Riyam joins React Universe On Air to talk about App Store Connect CLI, an open-source tool for automating App Store Connect workflows without living in the dashboard. What started as a way to pull TestFlight feedback turned into a broader interface for metadata, submissions, localization, analytics, reviews, and release operations. Mike Grabowski and Rudrank discuss why these workflows are a strong fit for CLI automation, why Go became the right language for an agent-built tool, how teams are using it in CI/CD and agent workflows, and what changes when multiple coding agents build against the same codebase. They also get into code structure, command design, agents.md, public vs. private App Store Connect endpoints, and what changed after Rork acquired the project while keeping it open source. What we cover: - Why App Store Connect workflows are a good fit for CLI automation - How the tool handles TestFlight feedback, metadata, localization, analytics, reviews, and submissions - Why Rudrank chose Go over Swift for an agent-built CLI - What he learned from running multiple agents against one open-source project - How clear structure and command naming make a codebase easier for both humans and agents - What Rork’s acquisition means for the project going forward Guest: Rudrank Riyam is a software engineer at Rork and the creator of App Store Connect CLI. He works at the intersection of Apple development, release tooling, and agentic workflows.

Tanner Linsley joins React Universe On Air to unpack the evolution of the TanStack ecosystem—from React Table and React Query to TanStack Router and the newest addition to the family, TanStack Start ✨ What started as internal tooling for Nozzle became a suite of libraries that shaped how developers think about server state, routing, and full-stack React apps. In this episode, Tanner shares the technical decisions behind building framework-agnostic, headless tools—and explains why client-side architecture still matters in a server-first world. You’ll also hear why TanStack Start isn’t just another full-stack framework, how React Server Components could be treated like server state, and what’s coming next for TanStack Router. If you're building React apps at scale or deciding how to modernize your frontend stack, don’t skip this one! Check out episode resources on our website 🧠 https://bit.ly/41Z876l Check out other episodes of our podcast 🎧 https://bit.ly/3XIHBeU Get your React Universe Conf 2025 tickets 🎟 https://hubs.li/Q03g5cLM0 Sign up for Callstack newsletter ✉️ https://bit.ly/4lwS7QP Follow us on X 🐦 https://twitter.com/callstackio Chapters 00:00 Welcome to the React Universe 00:00 Introduction to Open Source and Server State 01:15 Meet our guest: Tanner Linsley 02:19 How Tanner got into programming 04:06 Early programming days when there was no React yet 05:41 Cross-platform beginnings 07:40 Open Source contributions 09:24 Working on Chart.js 14:12 React Table at Nozzle 16:58 How React Static started 20:53 React Query taking shape 27:53 Community reactions to React Query 33:18 Framework agnostic approach 36:26 Cross-platform frameworks comparison 37:56 Headless, type safety, and no dependencies 46:22 TanStack Router 01:00:59 TanStack Start 01:11:06 React Server Components 01:18:51 Wrap-up 01:20:29 React Universe Conf Speakers Announcement

Eighteen TV platforms, one codebase—what could possibly go wrong? Tune in to find out how to tackle the technical and UX challenges of building for Android TV, Apple TV, Fire TV, Tizen, and more—all with React Native! In the 49th episode of React Universe On Air, Łukasz Chludziński (https://x.com/lukasz_app) teams up with Michael Khirallah (https://x.com/mkralla11), Senior Director of Engineering at DIRECTV, and Chris Trag (https://x.com/chris_trag), Developer Evangelist at Amazon, to discuss why cross-platform development is not just a time-saver but also a way to deliver a consistent user experience. You know that at Callstack, we’re all about performance—and with devices like Samsung’s Tizen TVs released in 2017 (running Chromium 47!), performance is a serious concern. That’s why we asked our guests to share real-world techniques for optimizing TV apps, from architectural choices to strategies that avoid unnecessary performance hits on newer devices. The complexity of TV app development doesn’t stop at coding, though. Our host and guests know it all to well, so they couldn’t help but discuss how they balance unit, integration, automation, and manual testing, leveraging tools like AWS Device Farm and custom-built frameworks to ensure stability across all supported platforms. What’s in it for you? Tips on automating QA without compromising thoroughness and why manual testing remains crucial for end-user experience. Want to get started with React Native TV app development? Download our guide 📖https://hubs.li/Q038xx4l0 Check out episode resources on our website 🧠 https://hubs.li/Q038xx3k0 Check out other episodes of our podcast 🎧 https://hubs.li/Q038kRpf0 Become a speaker at React Universe Conf 2025 🎟 https://sessionize.com/react-universe-conf-2025/ Sign up for Callstack newsletters ✉️ https://hubs.li/Q038kRnp0 Follow us on X 🐦 https://twitter.com/callstackio

Picture this: your teams are innovating independently, deploying updates swiftly, and navigating complex app architectures with ease. Microfrontends make this possible, much like microservices revolutionized backend development. But what about mobile? How can this approach transform your app development strategy? To explore these questions, we’re joined by Zack Chapple (https://x.com/Zackary_Chapple ), Co-founder and CEO of Zephyr Cloud, and Jakub Romańczyk (https://x.com/_jbroma ), maintainer of Re.Pack at Callstack. They dive into the evolution of microfrontends, starting with the fundamentals: what they are, why they matter, and how technologies like Module Federation enable them. Zack shares insights on tools like Webpack, Rspack, and Zephyr Cloud, showing how they streamline managing complex frontends. The episode then shifts focus to mobile, where Zack and Jakub break down the Zephyr Cloud and Re.Pack collaboration. Learn how to tackle platform-specific challenges like managing version compatibility, over-the-air updates, and reducing bundle sizes—all while staying app store compliant. Plus, hear about real-world scenarios, like dynamically loading features or ejecting unused code to optimize performance, and get a sneak peek at Re.Pack 5. Check out episode resources on our website 🧠 https://hubs.li/Q034233Q0 Check out other episodes of our podcast 🎧 https://hubs.li/Q034237L0 Get your React Universe Conf 2025 tickets 🎟 https://hubs.li/Q03423Hs0 Sign up for Callstack newsletters ✉️ https://hubs.li/Q034235v0 Follow us on X 🐦 https://twitter.com/callstackio

In this episode, we’re taking a closer look at two solutions that can redefine how we build universal React Native apps: DOM Components and React Server Components. They promise faster and better development—think low-latency interactions, offline capabilities, and the flexibility to scale effortlessly. If you're looking to future-proof your team's workflow and deliver apps that delight users regardless of the platform, this is a must-listen. To discuss DOM & React Server Components in detail, Łukasz invited Evan Bacon, the creator of Expo Router and Engineering Manager at Expo. Throughout the episode, Evan shares his expertise and journey in creating tools like DOM Components, which enable developers to integrate web code seamlessly into React Native apps, and React Server Components, simplifying server-driven rendering for mobile applications. Check out episode resources on our website 🧠 https://hubs.li/Q030XWL_0 Share your feedback on this episode ✨ https://bit.ly/fdbck45 Get your React Universe Conf 2025 tickets 🎟 https://hubs.li/Q030XWT40 Check out other episodes of our podcast 🎧 https://hubs.li/Q030XWMz0 Sign up for Callstack newsletters ✉️ https://hubs.li/Q030XWLD0 Follow us on X 🐦 https://twitter.com/callstackio

In this episode of the React Universe On Air podcast, Ola has invited Krzysztof Magiera, the Director of Engineering at Software Mansion, to talk about Radon IDE and why it can be considered a game-changer for React Native developers. Their conversation revolves around: ➡️ the challenges of the available React Native tooling, ➡️ what made Krzysztof start working on Radon IDE, ➡️ how community feedback contributed to what the tool is today, ➡️ the key features of Radon IDE, and how they improve developer velocity and productivity. Check out episode resources on our website 🧠 https://hubs.li/Q02ZVm8Z0 Share your feedback on this episode ✨ https://bit.ly/ep44feedback Check out other episodes of our podcast 🎧 https://hubs.li/Q02ZVm030 Sign up for Callstack newsletters ✉️ https://hubs.li/Q02ZVm040 Follow us on Twitter 🐦 https://twitter.com/callstackio

Grab your coffee, sit back, and tune in to the 23rd Coffee Talk episode, where we break down Next.js 15 and the updates it brings to the table. This time, Ola and Łukasz are joined by Szymon Chmal, and together, they spill the beans on React 19 support, caching, Turbopack, Server Actions security, and more! Check out episode resources on our website 🧠 https://hubs.li/Q02WX9fc0 Share your feedback on this episode ✨ https://bit.ly/ct23feedback Check out other episodes of our podcast 🎧 https://hubs.li/Q02WX6NP0 Sign up to receive curated content for tech leaders and developers ✉️ https://hubs.li/Q02WX6_x0 Follow us on Twitter 🐦 https://twitter.com/callstackio

Fasten your seatbelts, and get ready to learn about Nitro Modules straight from its creator, Marc Rousavy! On September 13, Marc released Nitro Modules to the public. If you haven’t heard about it yet, it’s high time caught up, because it’s a framework for creating fast native modules that significantly outperform Turbo and Expo Modules, making your React Native app even faster! Tune in to the episode to learn about: 💜 what led to the creation of Nitro Modules 💜 technical details and benefits of Nitro Modules 💜 performance comparison with Turbo Modules and Expo Modules 💜 behind the scened of Nitro Modules development 💜 starting a new project and migrating an old one to Nitro Modules 💜 developer experience and plans for the future Share your feedback on this episode ✨ https://bit.ly/coffeetalk22feedback Check out episode resources on our website 🧠 https://hubs.li/Q02Tps_l0 Check out other episodes of our podcast 🎧 https://hubs.li/Q02T28BP0 Sign up to receive curated content for tech leaders and developers ✉️ https://hubs.li/Q02T282n0 Follow us on Twitter 🐦 https://twitter.com/callstackio