[dnquark]

What's their portability story? I don't want my personal knowledge store to be locked into a platform, particularly one that's not guaranteed to last. PDF exports don't cut it, my notes are living documents.

I'm really sad that nobody has adequately addressed interoperability in the digital inking space; I'd gladly switch to an iPad or reMarkable, but so far I'm still the neckbeard inking in Xournal on an old Thinkpad.

[Enginerrrd]

Not great, you can only officially export PDF, PNG, or SVG, though their cloud management does seem to work really well and as I understand, files are stored locally on each device once synced.

That said, it runs linux so you could conceivably backup the files yourself. You can ssh into your tablet, run sftp, w/e. But they are in some proprietary .lines format.

There's a wiki with more details (the file format stuff is further down): https://remarkablewiki.com/tech/filesystem

It may be possilbe you could hack it to run xournal, but I've no idea.