This is really neat, it's something I hadn't thought about before. I've started listening to audiobooks on my commute, but I read at night. I currently use audiobookshelf[0] to listen to my ebooks, and it has support for ebooks as well. I've added a comment[1] on a discussion if audiobookshelf could read the epubs your took creates.

[0]: https://www.audiobookshelf.org/

[1]: https://github.com/advplyr/audiobookshelf/issues/189#issueco...