MachineName.swift

// https://stackoverflow.com/questions/26028918/how-to-determine-the-current-iphone-device-model

func machineName() -> String {
  var systemInfo = utsname()
  uname(&systemInfo)
  let machineMirror = Mirror(reflecting: systemInfo.machine)
  return machineMirror.children.reduce("") { identifier, element in
    guard let value = element.value as? Int8, value != 0 else { return identifier }
    return identifier + String(UnicodeScalar(UInt8(value)))
  }
}