Personally I would argue the term "OS" is simply not that well defined, and the readme makes no attempt to clear that up which I think leads to confusion. What

Personally I would argue the term "OS" is simply not that well defined, and the readme makes no attempt to clear that up which I think leads to confusion. What actually defines an OS vs. not an OS is a pretty blurry line, and more-over when someone talks about "OS development" 99.9% of the time they're talking about kernel development. So naturally calling something an "operating system kit" that lets you "create operating systems" makes you think of kernel development. That said, I read the whole readme linked here, and not once does it actually explain what an 'operating system' is, so I personally think that's just a failure on their part in picking a name and explaining what exactly the intended use of their project is. If instead of using the term "operating system kit" they used the term "baremetal/kernel application SDK" (or something along those lines) I don't think anybody would be nearly as confused on what it is. But I'm not entirely sure that's a good name either because I'm really just not sure what you're supposed to use it for. I read the whole readme, but I'm still at a bit of a loss. Don't get me wrong though, I still think it's a cool project, but mostly just for the code making up the 'Cosmos' kernel rather then the 'develop your own OS' aspect.