Since seeing that, my own efforts have crystalized into the project that I am building, ostensibly for a grandchild, inspired by my own grampa's talking plastic skull via ventriloquism in his workshop. Mine is to be a cybernetic version.
* Computer vision? openCV looks useful * Language? GPT-3 or GPT-V if you want to run on your own hardware. * Robot scooter projects are all over the place.