Got the start of loading animations working: https://gunstopperdrone.com/demo/walkforward.html
Having some trouble today with Mixamo importing objects from meshy.ai. I can export the default objects from Mixamo and then convert them to .glb to show in Babylon JS, but the auto rigger has an error when trying to import meshy.ai models. I was going to open support requests for meshy.ai and Mixamo about it.