This is really nice and a very original take. It feels good on mobile / other touch devices.

I'd love to see it feel a bit more polished on desktop (maybe I'll give that a shot if I find a bit of spare time!) - I could see a few simple things like adding up/down arrows to the picked item and wiring into up and down arrow presses going a long way to making it work really well there too.

Genuinely, thank you for sharing this, it's something different and interesting.