Brownfield React Native at Scale: Ship Dozens of Micro-Apps Daily by Sojin Park

Brownfield React Native at Scale: Ship Dozens of Micro-Apps Daily

Presentation bySojin Park

Toss, South Korea’s leading fintech app, runs 40+ micro React Native apps inside a brownfield super-app with 20+ daily deployments. We’ll share how we customized the bundling pipeline—replacing Metro with esbuild and enabling dynamic multi-bundle loading—to achieve sub-10s builds, sub-200KB bundles, and scalable React Native deployments at scale.

Presented at these Events

App.js Conference 2025

Wed, May 28th - 30th

9AM - 12PM CEST

Attend

Presented with these Guilds

React Native Community Kraków (RNCK)

76 members

Mobile apps are everywhere, React Native helps to build them more easily. But is there a life beyond React Native? If you want to explore how to speed up mobile app development, join our group!

In (RNCK) you can meet core community members, share ideas, and get inspired by them. You can be sure, that there are enough issues to solve for everyone.

Join React Native Community Kraków and become a member of the open-source community.

Join

Guild

Get in touch!

hi@guild.host