I love this app; it's a great way to convert PDFs and ePubs (eBooks), as well as articles, into audiobooks. 

Transitioning from reading to listening to books has made me 10x more productive. I read many more books, articles, and doc now. 

I hope there's a good open-source alternative for this.
https://image.nostr.build/1d9a9b077ad210f59ae14744111154f81e6f75d356c3a0cbcd46f32af9c0adf3.jpg