I installed the plugin OctoPrint-PowerFailure by pablogventura, but it doesn't seem to work well with Prusa MK3S+. Some edits in the configuration of the plugin are needed. Two main issues I'm facing:
When the printer re-prints after a power failure, it prints within a few millimeters higher then the last layer prior to the power failure. I checked in the plugin settings and you need to edit the section "Z_HOMING_HEIGHT", but as far as I can tell there is no Z raise when homing the MK3S+. I might be wrong here though...
After re-printing, the plugin doesn't wait for the extruder and hotbed to reach the desired temperature - it prints immediately without waiting.
If someone can help, or already have some good settings for the MK3S+ that works with this plugins,
I would love to hear from you.