I'm interested in avoiding lock-in, and would love to be able to export every note as an individual markdown file ("export all your highlights to a single CSV file" is clunky, and unusable for me).
It looks like:
* I have to export every item individually, manually ("export highlights on a document-by-document basis to Markdown by going to your Library and clicking the down arrow as shown below")
* I have to do this every time I edit an item inside Reader.
Have you considered building a "folder sync" plugin that exports each item/note as a separate .md file, and keeps it sync'ed? Even a one-way sync would be better than the manual flow you currently have.
Thanks for sharing the post and for taking questions here!