I'm convinced slowing feeding students, and having them produce good low-level codebase(s) (e.g. OSs, compilers) is a great Way to "holistically" teach them CS,

I'm convinced slowing feeding students, and having them produce good low-level codebase(s) (e.g. OSs, compilers) is a great Way to "holistically" teach them CS, much better than what's happening usually. "C is a razor-sharp tool"!