Display toast notifications on Xamarin and Windows Platforms.
Ensure you call ToastNotification.Init(); and register the dependency in each project. DependencyService.Register<ToastNotification>();
Read the full documentation on the projects page.
The Waher.Events.Persistence project creates an even sink that stores incoming (logged) events in the local object database, as defined by Waher.Persistence. Event life time in the database is defined in the constructor. Searches can be made for historical events.