Former iPhone hacker George Hotz has released his company’s self-driving car software and hardware as open source. The software itself is on GitHub, as well as 3D printer plans for housing the smartphone needed to run it. The Verge reported there is only one device that will work—the OnePlus 3—and you’re going to need some specific Honda or Accura models to use it. And really, what could go wrong with a bunch of folks experimenting with unproven autonomous vehicle software? Mr. Hotz has been developing the software and hardware as an after-market conversion kit, which he intended to compete with Tesla’s self-driving system. He abruptly announced he was pulling the product from market after regulators had the temerity to express an interest in it. This week, he announced its release as an open source project, rather than a for-sale product. Again, what could go wrong?