> We "log in" by running a Python script that pops a root shell.

I'm surprised that when you do this, you can't then set the root password. (Also, holy cow. What a durable machine.)

> (Also, holy cow. What a durable machine.)

This. There was also a story and a video, about 10 years ago (?), of a Commodore 64 still used at a car shop in Poland to compute stuff related to tires/wheels settings (degrees/angles, something like that). The C64 had basically been used every day the shop was opened for 30 years. It could still be in use. Or maybe it got retired because the owner of the shop retired (and hence, in a way, outlived the mechanic).