linebender/xilem
Xilem is a high-level reactive framework inspired by React, SwiftUI and Elm. It lets users create a lightweight view tree, and changes the rendered app based on changes to the tree. It has a web backend and a Masonry backend.
Masonry is a foundational crate for building natively compiled GUIs in Rust. It provides a retained widget tree and runs event handling and update passes on it.
This is the project I’ve contributed most prolifically to, as I use this for all my GUI endeavors and find it joyful to work with the project and the community, both.