I would love something like this targeting a broader category of machines. For example, keeping track of when I last changed the oil in my lathe or pressure washer and notifying me to do some kind of regular maintenance. Somewhere to keep track of what kind of oil to buy (for example) alongside a digital copy of the machine’s manuals as well as the ability to log maintenance records.

I used to use Notion for some of this, but they didn’t quite have the functionality I wanted a few years ago.