Yeah I have not messed around much with eink displays but my understanding is they are pretty slow to refresh. Tbh the inciting moment was realising that I could get small LCDs with a 1024x768 display which fits a 2x scaled default Decker resolution very nicely
ohh that’s interesting! I also don’t know a lot about eink, there are like phones and tablets that use eink displays now but that’s pretty niche and run android so idk if an average kindle for example could work.