This project is a cross-platform UI framework open-sourced by the Snapchat team. It supports writing UIs with TypeScript and directly compiling them into native views for iOS, Android, and macOS. It does not rely on WebView and JavaScript bridging. You can see the effect of changes within milliseconds without recompiling and supports setting breakpoints, checking variables, and analyzing performance in VSCode. It is suitable for cross-platform mobile application development scenarios that pursue native performance experience.