Packages with the system-crontab use flag

sys-process / fcron : A command scheduler with extended capabilities over cron and anacron

  • Set up fcron to respect /etc/crontab and /etc/cron.d. If this flag is disabled, /etc/cron.d and /etc/crontab will be ignored, but /etc/cron.{hourly,daily,weekly,monthly} will still be respected.