FastUI Please note: FastUI is still an active work in progress, do not expect it to be complete. The Principle (short version) You can see a simple demo of an application built with FastUI here. FastUI is a new way to build web application user interfaces defined by declarative Python code. This means: If you're a Python developer — you can build responsive web applications using React without writing a single line of JavaScript, or touching npm. If you're a frontend developer — you can concentr...