day-core
The runtime that turns Day’s UI descriptions into a mounted interface.
Day is a Rust framework for building apps with native desktop and mobile controls, plus HTML controls on the web.
[!NOTE] Usually an indirect dependency. You are unlikely to import this crate directly in an app.
dayandday-piecesuse it as part of their implementation.
It manages component lifetimes, layout, event routing, and the bindings that update native controls when state changes. Extension authors use it to implement components and connect them to the rendering tree.