Legend List: Optimizing for both Mobile and Web

Legend List is heavily optimized to be as fast as possible on both mobile and web. The core optimizations, like signals and minimizing renders, are shared between both platforms. But there's also some interesting differences in how we measure rendered elements and keep elements in order on web.This talk walks through the most effective optimizations I found for both React Native and React DOM, the key differences in the implementations between mobile and web, and general tips and tricks for optimizing your apps the most effectively.