During the program, we provide Apple pairing stations for everyone, so you won't need to bring any of your own hardware.
The office is open 24/7, but if you want to work at home, or if you're considering buying a dev machine anyway, we (very) strongly recommend buying a Mac. Apple is the de facto standard among devs. With an Apple computer, all the core tools like the terminal, Ruby, git, etc. will work out of the box.