[fragmede]

For extra credit on top of the webcam, you can also add a Fingerbot, and a pi pico with either an Ethernet port or a second USB port, so the host machine can talk to the target device as if it was a keyboard, and then also hard power it off via holding the power button if the work wedges the machine.

[yjftsjthsd-h]

Surely it would be simpler+cheaper to use a smart plug to kill power, at least for devices without a battery (or where removing it is easy)

[fragmede]

Sometimes you need to do a specific sequence of power button presses to reach certain states. Eg a laptop may have a specific power button press to perform a warm reboot (instead of a cold boot which you'd get by cutting power), which preserves the previous crash in RAM. This helps you figure out where/why it crashed, instead of having to guess.