Very cool project. I love how much thought you put into it, it really shows. One thing is I wanted to make you aware of is that the player doesn't work on MacOS Safari. Another thing that's really minor is that the font ligatures are a little distracting. Still though, amazing work. I love it and I'll keep checking in and seeing how it gets updated.
I really wish something like this existed for ancient greek.
I really wish something like this existed for ancient greek.