was recently reminded that the voicevox software is free as in beer so I've been mucking around with it
https://voicevox.hiroshiba.jp/product/zundamon/
since I don't actually know Japanese, I've mostly been getting her to talk in engrish or toki pona by typing in katakana
and using my phone to translate the UI (you can probably get a better result with print screen and pasting the pic into google translate)

apparently you can get her to sing by humming a melody? haven't tried that yet since I don't have a mic on my desktop (and given that this kind of wants a fast CPU/beefy GPU to be useful in any sane length of time, I don't have it on my ancient 10yo laptop that would have a built in mic), but it sounds like fun

zundamon is so cute...! (*´人｀*)