public static void Main()
Console.WriteLine($"{nameof(System.Runtime.InteropServices.RuntimeInformation.OSDescription)}: {System.Runtime.InteropServices.RuntimeInformation.OSDescription}");
Console.WriteLine($"{nameof(Environment.OSVersion.Version)}: {Environment.OSVersion.Version}");
Console.WriteLine($"{nameof(Environment.UserName)}: {Environment.UserName}");
Console.WriteLine($"{nameof(System.IO.Path.DirectorySeparatorChar)}: {System.IO.Path.DirectorySeparatorChar}");
Console.WriteLine($"{nameof(System.IO.Path.AltDirectorySeparatorChar)}: {System.IO.Path.AltDirectorySeparatorChar}");