VeloeMonitorAvaloniaApp/VeloeMonitorApp/Models/SimpleDataModel.cs

using ReactiveUI;

namespace VeloeMonitorApp.Models
{
    public class SimpleDataModel : ReactiveObject
    {
        private string _title;
        private double _value;

        public string Title { get => _title; set => this.RaiseAndSetIfChanged(ref _title, value); }
        public double Value { get => _value; set => this.RaiseAndSetIfChanged(ref _value, value); }
    }
}