Biggest thing for me was pinning CPU governor to performance and disabling turbo entirely. Slower numbers but they stop drifting as the box heats up. Also isolcpus for the load generator, otherwise you're benchmarking your own noise.
My grandad ran a small letterpress shop and when phototypesetting came in he didn't retrain, he just did smaller and smaller jobs until it was wedding invitations.
Nice thing is you skip port forwarding entirely, which matters a lot if your ISP has you behind CGNAT. Curious how people handle uptime though, since a hidden service going down isn't something you notice until someone tells you.
Sat on a couple of boards and the non exec chair mostly just guards the culture and can fire the CEO. Abel runs the business. That's a very different job from Howard's.