I was going through my hard-drive this weekend, and found some of my old MUD servers. The oldest seemed to be an archive from April 1999, and it contained an almost fully functional server.
So the next weekend I’m going to clean up the old servers, and make sure they can be built on a modern system, and then publish them. They might not be pretty, and the might not follow good object.oriented design principles, but my hope is that it might be useful for someone.