For those interested in doing this themselves, there’s some great existing software to create EPUB3 files with the audiobook aligned with text. https://storyte

For those interested in doing this themselves, there’s some great existing software to create EPUB3 files with the audiobook aligned with text. https://storyteller-platform.gitlab.io/storyteller/ https://storyteller-platform.gitlab.io/storyteller/ https://codeberg.org/richwaters/StoryAlign https://codeberg.org/richwaters/StoryAlign