I use a weed eater. Aka a string trimmer. It mostly just saws the potatoes in half unless I keep it moving. That’s what makes it efficient. The only inefficient part is meticulously placing thousands of potatoes on the floor with their non-peeled side facing up. I use my Spot robot for that, in the second garage. Spot lets me know when it’s time for another mass peeling.
I’d let Spot just carve the potatoes himself with a little paring knife but we all know where that goes. 🤨