Run bash scripts on KDE Plasma sleep and wakeup events of Power Management as a particular user?

Question

KDE Plasma 5.27.11 on Debian 12 amd64

I need to send some very short signals over USB on workstation's power management sleep and wake up events(not login and log out, they work fine). I have prepared separate bash scripts for those, only had no luck with finding how to bind them. I have root access to the machine so config solutions would work for me. How it can be done?

Answer 1

i created script in

/lib/systemd/system-sleep

and gave it executable flag

#!/bin/sh
case "1ドル" in
pre)
 /home/zzz/util/relay_off.sh
 ;;
esac
case "1ドル" in
post)
 /home/zzz/util/relay_on.sh
 ;;
esac

and it is working