Hi,
great Job!
Is it possible to use the 3-color display (red/black/white)?
Discussion
Those come with their own challenges. nostr:npub16cpe069rjz6pm5t42xcyhcn66f5rr04k64df3g03fk2wctlrlhsqycedcd can answer this better than me.
biggest disadvantage is the lack of partial screen refresh for the r/b/w color version