> The biggest mistake I made was high uptime. arjie.com was up for 10 years plus on a Hetzner VPS so that by the time they wanted to sunset the machine underlying I had no idea what my teenage self had set up. I have the backups but the site hasn’t been up in a decade

LLMs have solved this problem, they’ll happily deal with the software archaeology on your behalf. This is the kind of task they really excel at.