Comet with pure MVU, without any state.

CometMvuNoState.cs

public class RideTheComet : View
{
	public record CometRide
	{
		public int Rides { get; init; } = 0;
		public string CometTrain => "☄️".Repeat(Rides);
	}

	CometRide state = new CometRide();

	[Body]
	View body() => new VStack {
				new Text(()=> $"({state.Rides}) rides taken:{state.CometTrain}"),
				new Button("Ride the Comet! ☄️", () => {
					state = state with {Rides = state.Rides + 1};
					this.Reload();
				})
		};
}