Building v0 iOS and Fixing React Native Along the Way With Fernando Rojo, Szymon Rybczak & Oskar Kwaśniewski

About this episode

The episode discusses the development of Vercel's v0 iOS app using React Native, focusing on engineering challenges and solutions.

Vercel’s v0 iOS app is built with React Native, but it looks and feels like a fully native iOS product. In this episode of React Universe On Air, we go deep into how the v0 mobile app was built: from choosing Expo and going iOS-first, to writing native modules, fixing low-level React Native issues, and upstreaming improvements back to the ecosystem. This is a hands-on engineering conversation with Fernando Rojo, Szymon Rybczak, and Oskar kwaśniewski about real trade-offs, real constraints, and what it takes to ship a polished app under real deadlines. Chapters 00:00 Welcome to the React Universe 00:50 Meet our guests 02:42 v0 app overview 03:45 Iterating to greatness 05:07 Choosing Expo and initial tech decisions 07:55 Code sharing with v0 website 11:03 Open Source contributions 13:20 React Native Core fixes 15:40 Android version? 18:42 Modal issues we fixed 23:20 Working with React Native Core 26:16 Balancing deadlines and root cause analysis 27:23 Native Modules and custom solutions 29:16 Minimalistic UI challenges 30:44 Floating Composer concept 33:41 Feature flags and testing 36:48 WebView swiping and custom forks 45:16 Launch experience and security concerns 50:17 Final…

People in this episode

Guests: Fernando Rojo, Szymon Rybczak, Oskar Kwaśniewski

Topics covered

• React Native
• iOS development
• mobile app development
• Expo
• open source contributions
• native modules
• engineering trade-offs

Keywords

• v0 iOS app
• React Native issues
• native modules
• Expo
• open source
• mobile app
• engineering

Mentioned in this episode

Organizations: Vercel, Expo, React Native, React Native Core

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