Shiny for the client side has its own hosting model to allow it to work across the whole .NET client side ecosystem. Shiny is more of a framework with plugins built around it, than it is a “one off” plugin for a XF or MAUI application. It is recommended not recommended you take a dependency on Shiny for a single plugin.
The best way to get started with Shiny application is to use out templates
dotnet new install Shiny.Templates
However, if you have an existing application, please try our App Builder to help generate all of the pieces you need.