I suppose someone who want ereader only experience will just go with the vanilla firmware or flash CrossPoint, which this project forked from.

I personally hope this could drive more sales for those who don't necessarily want an ereader (or already have one) but are interested in tinkering with it (I doubt anyone looking for gaming or messaging will pick it, seeing it's still more expensive than a proper Android phone), and thus lower the price of future models for everyone.

There's probably some niche where ridiculously long battery life (plugging a small solar panel will effectively make it self-sufficient) and sunlight readable screen with very basic apps would be welcome.

home dashboard? i know that my mom would appreciate a simplistic UI like this

I wonder why that's not supported by Biscuit despite dozens of other functions being present. E.g. download and display an image once an hour. Can't wake from sleep regularly?

Maybe they've just not thought about that (yet). It looks to be mostly coded by Claude so, presumably, it been a very quick project to take from zero to where it is now, and they're in the mode of throwing old socks at the wall.