public static BuildHostContext ComposeUsing <T>(this BuildHostContext @this) where T : class, ICommand <IServiceContainer> => @this.ComposeUsing(Start.An.Activation <T>().Activate());
public static BuildHostContext ComposeUsing(this BuildHostContext @this, ICommand <IServiceContainer> configure) => @this.ComposeUsing(configure.Execute);
public static BuildHostContext WithDefaultComposition(this BuildHostContext @this) => @this.ComposeUsing <ConfigureDefaultActivation>();