In a recent communication, Amazon has alerted Kindle users about significant changes set to take effect from next month. The notification pertains to the phasing out of support for sending MOBI (.mobi, .azw, .prc) files through the “Send to Kindle” feature, starting November 1, 2023. This change, as News18 pointed out, specifically impacts users attempting to send MOBI files via email and Kindle apps on iOS, Android, Windows, and Mac.
Kobo devices work out of the box, and they are very hacker friendly, a good middle ground. They run mainline Linux with a custom UI, but you can change that to other systems, e.g. PostmarketOS (an alpine based linux distro) or install more fully featured reader programs like Koreader. With some hacking you can use the devices without a Kobo account. Some devices run from a simple sd card, so you can easily grow storage size, and easily backup the whole system. Most devices have hidden a serial port inside, with some soldering you can connect peripherials!
I have a clara hd, I use it as a tactical glide computer with xcsoar,, with an external serial gps and barometer
Any kobos with an sd slot currently? I can’t find any with anything about that
Libra 2 and Clara 2E both have internal micro sd, from the currently available models. You have to remove the back cover of the reader to replace them. Wiki lists all features of all readers, check the “Storage” column: https://en.wikipedia.org/wiki/Kobo_eReader
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