Can we get e-ink keys separately? It'd be great to solder-my-own for an ergodox. I'm also interested in keyboards that can change shape. I like the shape of a

Can we get e-ink keys separately? It'd be great to solder-my-own for an ergodox. I'm also interested in keyboards that can change shape. I like the shape of a TI-83, and I don't really like typing equations into Mathematica and LaTeX. I don't have an plan for this, but I'm interested.