My old PC locks up every 4 to 48 hours. It would make a terrible NAS.

Yes. The relevant metric:

99.55% of posts are on a single instance. That is not “federated” in any meaningful sense.

I use Tasker to log my weight to a Google Sheets spreadsheet, and just use a dumb scale.

The only piece of technology in my house is a toaster from 1982, and I keep a loaded shotgun next to it just in case it makes a noise I don’t recognize.