Sorry, this is a commercial project, not open source. In fact, if this fails, we will starve.
Anyway, it is the core of this app that automatically connects the naturally written note-taking into a form that can use Spaced Repetition. It's hard to explain in more detail, but I hope you enjoy the experience of being able to use Spaced Repetition for the content by simply taking notes in outliner form. Anyway, thanks for the compliment.