Creates a reboot-required file under /var/run if one of the packages specified in pmrr.conf is updated on an Arch Linux system via pacman. Removes it on reboot if the pmrr-reboot-required.service is activated.
Add the packages that should trigger the creation of the file in /etc/pmrr.conf. Run pmrr-regenerate-hook to regenerate the hook for the changes to take effect.