https://www.loftedaero.com/product-page/f-35b-three-bearing-swivel-module-3bsm

3 years after the lion kingdom's foray, the goog started hitting more widely available kits which existed in 2018.  Such is the latency of page rank search algorithms.

Feels kind of silly to bother with all these micros, encoders, bootloaders when others are just using normal 180 deg servos & getting faster movement.  It may not be as precise.  1 thing it does right is synchronizing 2 servos.  This is only possible with a stick controller.  This vijeo got 58000 views while the most a lion ever got was 2000.

This kit costs $300, but cheaper servos would get it down to $200.