Microsoft is introducing a new experimental C# framework called Microsoft.UI.Reactor to reduce the reliance on web-based desktop applications in Windows 11. The company aims to move away from Electron or WebView2 wrappers, which often lead to high memory consumption, such as the Weather app consuming over 1 GB of RAM.
The new framework allows developers to render WinUI controls and components using only C#, eliminating the need to learn XAML markup language. This approach is designed to be accessible for developers familiar with platforms like Android, macOS, React, React Native, SwiftUI, or Jetpack Compose.
Efficiency is a key focus, as the framework can consolidate projects that previously required multiple files into a single C# file. Additionally, it includes over 60 automated code checks to identify issues related to dark mode, accessibility, and performance, such as hardcoded brushes or screen reader compatibility.
Reactor supports state retention during editing, allowing developers to see changes in real time. By integrating with AI programming tools, Microsoft intends to simplify the creation of native Windows applications for both professional and non-professional developers.
