If you have any questions about how to use the app, licensing, etc.,
you can contact me in the following ways
I can speak Japanese and a little English.
For other languages, I may use a translator.
This is the most recommended method.
If encryption is required, OpenPGP is available.
My public key is here.
For open source software, you can submit issues on GitHub
If it is difficult, you may send me an e-mail.GitHub