Ribir is a Rust-based GUI framework that enables developers to create native multi-platform applications using a single codebase. It emphasizes a data-driven approach to UI development, allowing for automatic UI updates based on data changes. Although still in development, it supports various platforms with plans for enhanced mobile support.

The article discusses the GPUI Component, a set of Rust GUI components designed for building cross-platform desktop applications. It highlights features such as customizable themes, a variety of UI components, and high performance with support for large data sets. The repository also includes example usage and comparisons with other GUI frameworks.