Yeah, agreed. One of the items on my long TODO list is adding `setuid_process` and `setgid_process` and similar, so that perhaps a decade later when new runtime

Yeah, agreed. One of the items on my long TODO list is adding `setuid_process` and `setgid_process` and similar, so that perhaps a decade later when new runtimes can count on the presence of those syscalls, they can stop duplicating that mechanism in userspace.