What are some good sources for maintenance tutorials for electric scooters?

I’ve learned a great deal from trial-by-error maintenance procedures on my electric scooters. Often times, it’s hard to find how-to content online for basic scooter maintenance. I would really like to get your feedback on some good sources that we all can use to perform scooter maintenance.

Changing Out the RGB Controller for the Dualtron X2

DIY Cooter Speaker Mount

Installing Turn Signals on the Wolf Warrior 11

My Playlist of Maintenance Tutorials