I have now completed the migration of my 11 years of evernote archives into markdown and Obsidian (in a separate vault, to keep my current notes uncluttered). Joplin was an enormous help in transforming ENEX into markdown, even if it required a few fixes to prevent import going wrong.
@clacke I am ok with it not being open source precisely because it is just a viewer on top of my files. No lock in and can simultaneously work on the files w other os apps. Better imo than an os tool w sqlite i can't use outside of the app. Try Foam for a bit, which is os .
Ton's personal Mastodon instance