How To Get A Serial Number on macOS in Swift

serialNumber.swift

var serialNumber: String? {
  let platformExpert = IOServiceGetMatchingService(kIOMasterPortDefault, IOServiceMatching("IOPlatformExpertDevice") )
  
  guard platformExpert > 0 else {
    return nil
  }
  
  guard let serialNumber = (IORegistryEntryCreateCFProperty(platformExpert, kIOPlatformSerialNumberKey as CFString, kCFAllocatorDefault, 0).takeUnretainedValue() as? String)?.trimmingCharacters(in: CharacterSet.whitespacesAndNewlines) else {
    return nil
  }
  
    
  IOObjectRelease(platformExpert)

  return serialNumber
}

@anoopmg it works on ARM chips for me