pg is not the UNIX-type. He avoids systems-level stuff like the plague, as far as I can tell. rtm and tlb did the UNIX work at Viaweb and, I believe, rtm does the UNIX stuff for HN. pg is a smug lisp weenie (and I mean that in the best possible way). He's also a serious Apple fanboy, which the right and proper UNIX beards tend not to be.