Please check build logs and if you believe this is docs.rs' fault, report into this issue report.
This crate implements the core Alchemy application, which is what users ultimately import. Applications are a singleton; some might not like this, but it enables a design pattern that meshes a bit better with existing GUI framework systems and patterns.
The general pattern for developing with Alchemy is as follows:
[Alchemy API] -> [Inner Mutability] -> [Platform Bridge (implemented in other crates)] | | |- [Delegate]
The delegate pattern is cribbed from AppKit/UIKit, where it tends to work quite nicely as a way to respond to system level events.
Open an issue, or hit me up on Twitter.