✨ In September 2024, The React Native Show has become React Universe On Air ✨ 

In June, we released stable Reassure v1.0.0. It’s big news for performance-oriented teams, so we just couldn’t help ourselves but record an entire Coffee Talk about that!

To give you the most comprehensive insight into what’s new in the performance testing companion for React and React Native, Kuba invited the team behind it: Maciej Jastrzębski and Adam Horodyski. Together, they delve into what Reassure is, its uses, how to integrate it, and how it can benefit projects from both a development and business perspective. The episode also touches on the technical details of the tool, the importance of performance testing, and calls for your help. Yes, you read it right, we welcome community contributions to further enhance Reassure!

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What’s New in Reassure 1.0 | React Universe On Air: Coffee Talk #20

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

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Superfast Nitro Modules with Marc Rousavy | React Universe On Air: Coffee Talk #22

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 

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What’s New in Next.js 15 | React Universe On Air: Coffee Talk #23

In this episode, Kuba is joined by Kewin, a member of Callstack’s AI team at the R&D Department and the co-creator of Cassandra. Together, they talk about everything you need to know about building a custom AI assistant, from why we chose OpenAI’s ChatGPT to the challenges faced and solutions devised to craft a functional and efficient internal chatbot. They also share some interesting insights about the considerations for performance and security, as well as the future of AI in workplace management.

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Building a Custom AI Assistant for Your Business | React Universe On Air: Coffee Talk #24

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.

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Radon IDE: Better Developer Experience for React Native Teams | React Universe On Air #44

React Native FastIO: Nitro-Powered Performance Boost | React Universe On Air: Coffee Talk #25

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.

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Universal React Native Apps with DOM and React Server Components | React Universe On Air #45

In 2020, Shopify decided to switch to React Native for both new and existing apps. In November 2024, the migration of their mobile app was officially over, resulting in a remarkable 86% unification of code across platforms and a streamlined development process that stems from eliminating 1.8 million lines of redundant code, reducing build times, and achieving seamless feature parity between iOS and Android. 

Let’s take a closer look at the decision-making process involved in this transformation with Mike Grabowski (@grabbou at X) as our host and Mustafa Ali (@mustafa01ali at X), Shopify's Director of Engineering, as his guest.

Learn about the motivations for this change, such as reducing duplicated efforts and enabling seamless developer collaboration across web and mobile, the challenges faced, particularly in optimizing performance for their high-usage point-of-sale app, and the essential role of native developers in ensuring exceptional app performance and user experience.

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Lessons from Shopify's Migration to React Native with Mustafa Ali | React Universe On Air #46

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.

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Mobile Microfrontends With Zephyr Cloud and Re.Pack | React Universe On Air #47

Reanimated 4 is here to change the way we build animations in React Native. With CSS-style animations and transitions, animations are now easier to write, more predictable, and work more like they do on the web.

In this episode, Ola Desmurs-Linczewska (https://x.com/p_syche_) sits down with Tomasz Zawadzki (https://x.com/tomekzaw_) and Mateusz Łopaciński (https://x.com/MatiPl01) from Software Mansion to discuss what’s new in Reanimated 4, why React Native is moving toward web standards, and what these changes mean for developers.

We talk about:
💜 Why Reanimated 4?—the motivation behind CSS-based animations and what problems they solve.
💜 How CSS animations & transitions work in React Native—use the syntax you already know!
💜 New Architecture-only support—why the old architecture is gone and what it means for migration.
💜 Aligning React Native with web standards—how Meta and the community are making React Native more like the web.
💜 Modularity and the future of Reanimated—splitting the library into smaller packages for better maintainability.
💜 Migration tips and developer experiments—how to upgrade, test new features, and start using CSS animations today.

Reanimated 4 is in beta now, so experiment with it and share your impressions in the comments!
Check out episode resources on our website 🧠 https://hubs.li/Q036Kc1k0 
Share your feedback on this episode ✨ https://bit.ly/fdbck48 
Become a speaker at React Universe Conf 2025 🎟 https://sessionize.com/react-universe-conf-2025/ 

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Reanimated 4 is the Future of Smooth React Native Animations | React Universe On Air #48

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.

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