This is a very nice packaging of a kindle hack I've seen several years ago [1]. Previous discussion: [2]
You can point your kindle web browser at this website: [3]
It is based upon a Kindle project [1] and initially I just used the quote library from that project (which is based on a crowd-sourced collection of quotes by The Guardian [2]).
Later, a lot of quotes have been added by kind strangers through GitHub issues and pull-requests [3].
There is this fork which has a few different languages and some other cool features. I believe the non-english quotes are mostly machine translations of the quotes in my repo.
https://literatureclock.netlify.app/?locale=pt-BR
[1] https://techni.gallery/literaire-klok-trekt-internationaal-a... [2] https://news.ycombinator.com/item?id=17688324 [3] https://literature-clock.jenevoldsen.com/