Nice job, Justine. This level of excitement reminds me of the early days of Linux. I think it has the potential to go far.
Author here. Thanks! I was deeply inspired when I read the source code to early versions of Linux and UNIX. The dream of that simple elegant power is something I'm hoping to restore for a new generation. All I'm doing to achieve that is simply standing on the shoulders of the giants who came before me.
I've been banging my head against the wall of trying to make a micro KVM guest and the glibc startup code uses inline SYSCALL everywhere, I assume to make things faster. It does seem to call CPUID a lot too, but I guess it's not as expensive as having to make full-blown system calls.