Integration of LEDs onto Px4

Hi , i am trying to include race LEDs into my px4 run hexacopter . A guy has agreed to give me one that works on inav , betaflight and ardupilot . But the documentation is very low for px4 . The guy says it uses the neopixel driver .

I can only see reports of it not working properly
Neopixel LED driver control - PX4 Autopilot - Discussion Forum for PX4, Pixhawk, QGroundControl, MAVSDK, MAVLink

If you can, you’re welcome to have a look at the code and fix whatever is broken.
You could also ask at the Discord, it can be more responsive than here.