Open-sourcing Flipper: a new extensible debugging tool

What this post added

This post introduces Flipper, an extensible cross-platform debugging tool for iOS and Android applications, open-sourced by Meta. Flipper builds upon the learnings from Stetho, offering a more extensible and richer user experience. It comprises a desktop client (built with Electron, React.js, Flow, Metro, RSocket, and Yarn) and a mobile SDK (using Folly and RSocket). The architecture allows for custom plugin development for both the desktop client (React components) and mobile SDK (native code), enabling bidirectional communication for debugging tasks like inspecting view hierarchies (Litho, ComponentKit), GraphQL requests, and performance markers. The post highlights Flipper's extensibility and its potential to improve mobile app development workflows.