He came over to NetBSD from Gentoo a number of years ago, bringing dhcpd with him. An excellent acquisition for NetBSD. He has been a dedicated and thoughtful BSD developer. This is very sad news.
As someone else commented in this thread, would be surprised if anyone could find a higher quality alternative. This one is free, open-source, written by a volunteer, not by a company nor by any organization that accepts money derived from online ad sales.