script:
  sarah_restart:
    alias: System - Restart SARAH
    sequence:
      service: homeassistant.restart

automation:
  - id: system_announce_start
    alias: System - Announce start
    trigger:
      platform: homeassistant
      event: start
    action:
      - delay: 00:00:06
      - service: script.say
        data:
          message: "Hey! I was out for a bit, but I'm back online!"