GTK is described as 'Multi-platform toolkit for creating graphical user interfaces. Offering a complete set of widgets, GTK is suitable for projects ranging from small one-off tools to complete application suites' and is a popular app in the development category. There are more than 25 alternatives to GTK for a variety of platforms, including Windows, Linux, Mac, Android and Self-Hosted apps. The best GTK alternative is Qt, which is both free and Open Source. Other great apps like GTK are Flutter, Electron, PyQt and Avalonia UI.
Repose is a Rust UI framework with a Compose-like programming model. It's organized as a small core (repose-core) plus higher-level UI/layout (repose-ui) and platform runners (repose-platform) that currently target desktop (winit) and Android, with web support.
