I owned a Remarkable and returned it because it is so frustrating.

Remarkable runs a scuffed version of Linux, which requires developers to release a separate version of whatever app they have. Although the selection is growing, it is paltry compared to offerings from a typical Android or iOS device.

Below is a list of so called “best” apps. No syncthing, no Obsidian, no Saber, etc. Multiple scuffed versions of Zotero that can’t do annotations.

github.com/reHackable/awesome-reMarkable

Even for the few custom apps available, these are all uninstalled and reset with every OS update.

remarkable.guide/faqs.html#what-happens-to-third-…

If you don’t want to use the few third party cloud sync options, then Remarkable charges money for cloud sync.

remarkable.com/shop/connect/pricing

Remarkable’s notes are also stored in a proprietary format that cannot be read by other applications. Attempts to reverse engineer it are jank af.

github.com/akeil/rmtool

It it works for you, great 👍. But I cannot whole heartedly recommend it. Even if you love eInk, just grab an Android based one like Boox.