She should be fine, but yes on newer kindles like the Scribe (came out in 2022 so not exactly brand-new now) they removed the “mass storage mode” (= what made kindles show up on a pc as a usb drive).

Calibre can work with the newer MTP mode (which is similar to what android phones have) but it’s a lot less reliable and requires that no other app, including the OS, file manager, is accessing the device at the same time. It’s frustrating and I’m very happy to have jailbroken it, now I can use SFTP to browse the folders much more speedily.

Installing Koreader which can do a million things, but also playing around with terminal access, python, bash scripting, neofetch, usb-network, SSH. For older kindles: the screensaver hack was my first reason to ever jailbreak one.

Well put, that’s the most commonly experienced anti-feature introduced, another less common one where they have been less and less lenient over the years is geolocation restrictions: people in the past could register with other countries (cheaper) pricing, today most legitimate customers cannot access their content even when traveling for a few days, or they risk getting blocked. Similarly to the region-codes on dvds and blurays, I can’t imagine it really helps sales, but it siloes consumers into country blocks and monopolies tend to like that.

That 5$ could have been about 15btc in the beginning of 2011, so 1.5M$ today