Some quotes I like:

    Andreas: Everything is just a piece of code that somebody writes. And if we just make all those pieces of code and stack them up, it’s going to work. I had no illusions about how an operating system looks once it is put together and works. Now I didn’t know how to get there, but I reasoned that if you just start building these components one by one, eventually you’ll have the full stack and it will just gel together. So that’s what I started doing.

    Andreas: I remember so much leaving Apple and still having that feeling of, “I can just go and look in the source code of this thing.” And I was using a MacBook when I left Apple. I remember getting really frustrated when I couldn’t bring up the source code for stuff anymore. ... I think it would be cool if everybody could have that feeling about the software they use every day without having to work at Apple. The spirit of taking ownership of the whole stack, Apple doesn’t have a monopoly on that mindset. And it’s definitely something that could be replicated elsewhere.