There's no Greek in there, so that's unfortunately another skip for me. I know most people won't care, but at least try for a WGL4 (https://en.wikipedia.org/wiki/Windows_Glyph_List_4) charset! All Greek-derived alphabets (Greek, Latin, Cyrillic) have very similar characteristics (unlike other writing systems such as Arabic, Hebrew, Chinese, Japanese or Korean), and it should be much easier to expand your system to cover those.

EDIT: As many people have said, the "custom Python engine" would be far more interesting than the font itself.