3D Printer Fail-Safes

Just wondering how other people are managing over-night/remote printing? Are there any opportunities included in Klipper/RatOS to use a smoke detection system to power off the entire printer - or any other means of connecting an external trigger to the printer to make it more safe to do remote printing? Perhaps a visual monitor to review the printing area and if artifacts are outside of this zone the fail-safe is triggered?

(I know that it's not best practice to leave a printer un-manned - but in reality it's going to happen... as some prints are over 24hours and there's only so much coffee can achieve...)
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