private AppContextData(string settingsFilename)
{
MachineName = Environment.MachineName;
MacAdress = InternalHelper.GetMachinecMacAddress();
var builder = new ConfigurationBuilder();
AppConfig = builder.Add <WritableJsonConfigurationSource>(
(Action <WritableJsonConfigurationSource>)(s =>
{
s.FileProvider = null;
s.Path = settingsFilename;
s.Optional = false;
s.ReloadOnChange = true;
s.ResolveFileProvider();
})).Build();
}
