Saw the video on YouTube and immediately wanted to try it on my mom! This is such a great idea!
The one issue I have is language, as my mom doesn't speak English and I know from experience this is also a strong barrier to learning. I'll label the keys but if the UI was translatable that would be extra epic.
I haven't had a look at the files yet but any chance the UI text can Ben on a text file for easy localization?