flet-dev/flet — reverse-engineered prompt

Build me a Python framework that lets people create real apps for desktop, web, iOS, and Android without needing to write JavaScript, HTML, Swift, Kotlin, or Dart. I want the developer experience to feel simple, write one Python file, add buttons, text fields, layouts, dialogs, charts, navigation, and have it run as a native window or in a browser.

Use Flutter for the visual side if that makes sense, but hide the hard parts so Python users can just build the app. Include real time UI updates, a basic command to run an app, support for packaging apps for common platforms, and a way to test on mobile. Please include a clean counter example, good docs, and a small website explaining what it does. Make it feel polished and friendly for beginners, with sensible defaults and accessible controls. Look up current docs online if you need to.