TFA says this clearly. The whole point of the article is that the device can be used to develop and build software for the device, on the device, without an external system...

Such as tracking you every moment of your waking life. How modern technology has become so evil, looking back. Nowadays every device we have is clearly spyware, from the point of view of 1999.

> You can write your own apps for your personal iPhone on a mac

Sure and you can write your own apps for some devices on a mainframe, even today