A medieval castle could be defended by surprisingly few people, but not by zero people. And a castle full of people who don't know how to fortify and maintain i

A medieval castle could be defended by surprisingly few people, but not by zero people. And a castle full of people who don't know how to fortify and maintain its defenses eventually becomes someone else's castle. Aiming for zero required sysadmins in the short term after your own passing, I think the computers you leave behind will run into a similar case of the same general problem in the long term: there's no such thing as an entropy proof system. Castle walls erode and weapons rust if there are no skilled people to maintain them. Computer components slowly break down due to ordinary wear and tear. Software configurations become obsolete and unable to talk with other software, and become less secure as vulnerabilities are discovered over time. If there are no skilled people at all to maintain a familial network-citadel, it will eventually break down and fall into disuse.