A electronic workbook/task generator app for korean learning with AI or human feedback (although for now you have to find the humans yourself).
I grew in ideas and attempts over the years, and it finally got along far enough I actually made it available. The progress in LLMs made some things much easier that I conceived in 2020, but other things didn't get better.
Now that I made it this far, I had to realize though that it is far from what I had imagined and needs much more work.