Comment by squigz
> Paper books are too hard to sell after you have read it.
Still accomplishes the goal of allowing kids to read a book.
> Ereaders can not render PDF/DJVU with formulas. My reading list has nothing able to be read from that kind of devices.
Kids don't usually have these sort of requirements with their reading lists. Also have you looked into KOReader[1], which has support for djvu it looks like?
> Installing some more proprietary code will not lead to "deshittifying" some existing proprietary code. You just add 1 guy more of your dependances. You even can not do this once for whole life of the device. So many time perfect for reading goes inte nowhere with Woedows OS.
Firstly, I wasn't suggesting installing more proprietary code. Not sure where you got that from. Most scripts/guides I've seen that help disable the more intrusive/annoying parts of Windows are FOSS.
Secondly, then install Linux and only use FOSS, for which there are many options to read books with?