“UI code written in this architecture will look very intuitive to those familiar with state of the art toolkits such as SwiftUI, Flutter, and React, while at the same time being idiomatic Rust.”
Rust still has no settled answer for GUIs, and this is another serious attempt from the Druid team. The pitch is SwiftUI-style view trees checked at compile time, without the shared mutable state Rust hates. The design is clever. Rust GUI has had many clever designs and very few apps shipped on any of them.