Looks interesting, but there are aspects about how it's presented and needs to be downloaded that is a bit questionable.

1) If this is not meant for just a Japanese audience, then at least have an obvious English translation.

Google translate is doing an OK job, so at least put that up (just indicate machine translation).

2) Directing people to download from Google Drive or Hugging Face seems less than ideal.

SourceForge (https://sourceforge.net/) might be another acceptable option. Both because it can be used to mirror what is at GitHub and can be used to host larger files (though still a depends type of thing). At the very least, they are more well known and trusted.