I’m using this app’s EPUB engine for my iOS/macOS app, Manabi Reader, which is for learning Japanese through reading (but I want to expand to more languages and

I’m using this app’s EPUB engine for my iOS/macOS app, Manabi Reader, which is for learning Japanese through reading (but I want to expand to more languages and general purpose use soon) https://reader.manabi.io https://reader.manabi.io