The foss ebook reader app i mentioned doesn't require doesn't take any effort. As for the ebooks torrents, it depends on how well known the author is, but shouldn't be hard to find them. I have a Pixel 9 Pro Fold, the inner screen is great to read ebooks.
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Can't wait for the Pixel 10 Fold Pro.
Hoping in 2030s they perfect hybrid eink displays.
This is a nice Android front end to libgen. You can download and read in your preferred reader app.