Fable.Reaction is a library combining reactive programming with the model view update (MVU) style architecture. Fable.Reaction builds on React Hooks and can perform any task. Think of them as live components that you can include anywhere in your view or be mounted anywhere on the page.

Fable.Reaction can easily be used together with Fable.Elmish, but have no dependency on Elmish itself. Views and components built using Fable.Reaction can be included in Elmish views or mounted by themselves anywhere on the page.