Neighbourhood.omg.lol/App.xaml.cs

namespace Neighbourhood.omg.lol {
  public partial class App : Application {
    public App(NavigatorService navigatorService) {
      InitializeComponent();

#if WINDOWS
      MainPage = new WindowsAppShell();
#else
      MainPage = new AppShell();
#endif
      NavigatorService = navigatorService;
    }

    internal NavigatorService NavigatorService { get; private set; }
  }
}