Waveshare is probably the easiest way to play with eInk today. If you're willing to look at different sizes, they offer displays with partial refresh already built in.

The 2.7 inch models are nice for people beginning with hardware because it's already built as a Raspberry Pi HAT, literally plug and play, no soldering or wires required. https://www.waveshare.com/product/displays/e-paper/2.7inch-e...

The bottom of that page lists the other models; look for the ones supporting partial refresh to get around that flashing distraction.