Based on: https://www.adobe.com/products/substance3d/plugins/mixamo-in-blender.html
The add-on provides a one-click solution to create an IK control rig and to bake animations in and out of the character control rig and skeleton.
This was built with the command line and passed.
However, blender says "Unable to parse the manifest" and I have no idea why after checking the docs for blender extensions.
This extension has not been reviewed yet.
Try at your own risk.