David Leuliette
React Native Developer & Podcast Host
David Leuliette is a French freelance React Native developer helping companies ship universal apps for iOS, Android, and the web since 2016.
He hosts the Cross Platform Show, the #1 French-speaking React Native podcast with 10K+ listens, and has delivered 50+ talks at conferences and meetups across Europe.
When he's not shipping production apps, he's sharing hard-won lessons about mobile architecture, Expo workflows, and the tools that actually work in the real world.
Offline First Mobile Apps with React Native & LegendState
Your users don't care about your internet connection. They just want the app to work.
Offline-first is no longer a nice-to-have, it's a baseline expectation for any serious mobile product. But most React Native apps still crash, freeze, or show errors the moment connectivity drops.
In this talk, I'll show you how to build truly offline-first apps using React Native + LegendState v3, a blazing-fast state and sync library that makes local-first architecture surprisingly simple to implement.
You'll learn how to structure your data layer so your app works on day 1, with or without connectivity, and understand the real trade-offs I hit building production apps with this stack.
No more spinners. No more error screens. Just apps that work.