Less.

within the last 18 months I've used it in code. The problems are fundamental to the solution; for instance the latest version of firebase is 12 and the latest version of the Xamarin bindings supports firebase 11.4.2 but between these two versions is 11.6 and 11.8 which have no Xamarin equivalent. The 11.4.2 version of the Xamarin bindings came out several months after the underlying library was released.