Is rewriting your native app really the only way to go cross-platform?

In this Coffee Talk episode, we explore how React Native Brownfield offers a smarter path forward.

Łukasz Chludziński invites Oskar Kwaśniewski and Burak Güner—who work directly on React Native Core and brownfield tooling—to discuss how recent advances in React Native have made brownfield integration far more viable, stable, and scalable.

You’ll learn:

➡️ Why brownfield isn’t what it used to be (goodbye, brittle bridging)

➡️ How `RootViewFactory` and `ReactNativeFactory` APIs simplify setup

➡️ What’s new in React Native Brownfield 1.0.0

➡️ How to keep your architecture clean while integrating React Native

➡️ What this means for modern native stacks like SwiftUI, Jetpack Compose—and future-facing platforms like visionOS

Whether you’re maintaining a legacy app or building for what's next, this episode gives you a blueprint for hybrid success.

Explore React Native Brownfield 🙌 https://github.com/callstack/react-native-brownfield

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Timestamps

00:00 Welcome to the React Universe

02:00 Meet our guests: Oskar & Burak

02:50 Let’s talk brownfield app development

03:37 Craziest brownfield setups our guests have seen

08:19 Greenfield vs. brownfield React Native

14:14 How we used to approach brownfield development

18:20 Callstack’s React Native Brownfield

23:30 RootView Factory & React Native Factory

28:50 New Features in React Native Brownfield 1.0

35:35 Sharing data between native and JavaScript

41:00 How about using different React Native versions

43:30 Cost of complexity

47:00 Learn more and get in touch with our guests