start-stop-daemon supports setting /proc/<pid>/oom_score_adj using either the flag --oom-score-adj or the ENV variable SSD_OOM_SCORE_ADJ It would be nice if Gentoo/OpenRC would check conf.d files for SSD_OOM_SCORE_ADJ and set this variable for the service. SSD supports the following ENV variables: SSD_IONICELEVEL SSD_NICELEVEL SSD_OOM_SCORE_ADJ SSD_STARTWAIT I notice that some packages implement their own "NICE", "NICELEVEL", etc in conf.d. A better way would be that OpenRC handled this in an official way. All four variables could be handled in the same way.