Windows Forms

Various samples

Windows Presentation Framework

Ever noticed that little checkbox when installing Visual Studio to "Install GitHub for Visual Studio"? Yeah that extension is a enterprise grade application built with ReactiveUI and it's completely open-source. See (especially the unit tests!)

Additionally you absolutely must take for a test-drive. So so good.

Universal Windows Platform

Tiny app for reading RSS feeds built for Universal Windows Platform. Uses ReactiveUI modern MVVM framework and PropertyChanged.Fody for INotifyPropertyChanged injections.

Xamarin Android

Xamarin iOS

Xamarin Forms

Xamarin Mac

Send in a pull-request linking to the source code of something you have built.