ResourceUsageAPI/Program.cs

using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using System.Diagnostics;

namespace ResourceMonitorService
{
    public class Program
    {
        public static void Main(string[] args)
        {
            CreateHostBuilder(args).Build().Run();
        }

        public static IHostBuilder CreateHostBuilder(string[] args)
        {
            var builder = Host.CreateDefaultBuilder(args)
                .ConfigureServices((hostContext, services) =>
                {
                    services.AddHostedService<Worker>();
                });

            if (args.Contains("--windows-service") || Environment.GetEnvironmentVariable("RUN_AS_SERVICE") == "true")
            {
                builder.UseWindowsService();
            }

            return builder;
        }
    }
}