This is very well done. I've been hobby researching learning tools for the past couple years and this looks like one of the best. @ai_ia have you seen Andy Matuschak's Orbit project?
You both seem to be solving similar problems.
You both seem to be solving similar problems.
I am familiar with Andy's Orbit project given that I am a big fan of his writing.
I even linked to his essay "Why Book's don't work"[1] in the introductory blog post[2] as well.
[1]: https://andymatuschak.org/books/
[2]: https://primerlabs.io/blog/introducing-primer/#the-problem-o...