I keep being tempted by this e-ink device 

I keep being tempted by this e-ink device 

@amin @jp @joel some custom firmware for this too! ereader space is pretty lame so far. best mainstream one is Kobo Clara HD and put Koreader/plato on it. Other than that, looks like XTEINK X4 is it. such a dearth of options.
https://www.joshualowcock.com/xteink/the-best-guide-tools-hacks-and-more-for-xteink-x4-owners/