Corollary 2 reminds me a bit of software like djbdns and qmail which was relatively simple and worked incredibly well for it's time. I managed a number of prod

Corollary 2 reminds me a bit of software like djbdns and qmail which was relatively simple and worked incredibly well for it's time. I managed a number of production systems with both and it always worked beautifully. That said, licensing confusion always made it difficult for anyone to repackage and distribute it (until 2007) and djb was not known for being easy to work with. So that probably also hurt adoption.