There are some good enough automatics out now at very reasonable prices.

Of course there are also crazy expensive ones also, but they all do essentially the same thing - convert your movements into time measurements 😀

That would possibly work

I may or may not do this occasionally with byobu and my own services. Byobu is easier to use.

We are deep in the technical weeds here. 95% of Linux usage really doesn’t require such humour unfortunately.