I love pihole, for my family it is better as it helps on all the devices. Being able to block malware and tracking is nice too

There are options good and bad.

I’d back up just the dockers. The OS can be rebuilt easily enough. Yes Rsync the data

Or. Shut it down, pull the SD card, put it in another computer and rip it as an image, Full bootable backup

I would do the first not the second.

Ooo. Thank you.

Kindle screens are very good , but eff Bezos

An iPad is versatile, but then Apple…

But FOR ME, I cannot read books on a computer screen, it is just too awkward.

So yes I iPad.