[NiLuJe]

USBNet ships w/ zsh, which does expects its zshrc to live in somewhere in us/usbnet/etc (it also ships w/ my own ZSH config), but, again, you'd need to exec zsh at some point (because switching the root shell seems like a terrible idea).

I didn't find any satisfactory way to painlessly automatically use zsh over SSH without touching anything on the Kindle rootfs (though there might be some hints about my attempts in the readme, or at worst in the commit logs).