> The tricky part of creating your own OS is debugging. The older I get, the more I think I can figure out most problems that don't require some really gnarly

> The tricky part of creating your own OS is debugging. The older I get, the more I think I can figure out most problems that don't require some really gnarly domain expertise if I have a good way to iterate on them: code something, try it, see the results, see how they compare with what I wanted. It's when pieces of that are difficult or impossible, or very slow, things get more difficult.