So after seeing this project on the front page of hackernews. I decided to add my EPUB reader on a submission as well[0]: https://epub.mirror.forumand although I already previously had the idea of showing books from gutenberg but your idea made me find more importance in it and I ended up doing so in two different implementations: https://guten.mirror.forum and https://gutencf.mirror.forum, so I thank you for that!
[Offtopic: I am/was also surprised to see that there is a lack of API or platforms if suppose I created this app and I wanted to give users genuine ways to pay. Aside from the walled gardens of Kindle or specific apps, I am unable to give my users a way to just search books, pay for them and download it (atleast to my understanding at the moment) which is a sad thing :-( ]
I hope people are able to give love to my submission at [0] / the link down below. Cheers and take care and have a nice day if a real human is being out there reading this :-D
Hope you like or enjoy it and find it useful!
[0]: https://news.ycombinator.com/item?id=48710584