So we do currently have the ability to export all your cards as one giant markdown file. Obviously the issue with any sort of export with our system is that even if we export as markdown, the relationships don't really carry over into the export.

But this is definitely something we are working to make as easy / thorough as possible. Data ownership by our users is very important, which we've spelled out in our terms[1] as well.

[1] https://supernotes.app/terms/