Oops.
Yes, the robot will not do anything without the Driver Station application enabling it. Safety you know.
I run the Driver Station application on my programming laptop while I'm debugging LabVIEW.
RSL stands for Robot Status Light. It's labeled on the Digital Sidecar right beside the white wago 12v power connector.
In competition we also connect a big yellow repeater light and call that the RSL, too, but it just echos what the little green light on the Sidecar does.
It tells us when the robot is disabled or not connected to the Driver Station (fast blink).
When it's connected but disabled (slower blink)
When it's in Autonomous (solid)
When it's in Teleop (long on/short off blink)
The Jaguar lights will blink if there's power, but the robot is disabled (or not communicating).
Will be solid yellow if enabled and in neutral
Will be blinking or solid green if going forward
Will be blinking or solid red if going in reverse
There are also some blinking error codes if something goes wrong.