I'm using systemd in an embedded device that some some LEDs. I'd like to make an LED red when the system starts up degraded, and green when everything is working normally. I'm having a hard time figuring out where to fit this in. I tried using a service that runs "systemctl is-system-running" after I've reached my target, but that command returns "starting", obviously. What's a better way to run a command when the system is "running" vs "degraded"?