I have this on my Amazon Kindle and I freaking LOVE it!

Paired with BookOrbit [0] and using plugins like BookShelf, BookEnds, and KOAssistant I have the best reading setup ever.

The speed of this on my Kindle is _insane_ compared to the stock software. I'm not talking about page turning, that was fine on both, but navigating menus is way faster.

It was a little finicky to configure but once I got a feel for it I didn't have a problem and 15 books read later since I installed it a few months ago and I never touch the settings.

My favorite plugins:

BookShelf: Best UI for viewing my books by author/series/etc IMHO. Much better than the Kindle default UI and much snappier

BookEnds: Configure the header and footer of each page to show what info you care about most. There are community configs you can test out easily and download right on your kindle if you like them

KOAssistant: highlight some text and throw it at an LLM with a provided prompt or your custom one. This was invaluable when reading the Hornblower series which used a lot of older english words/phrasing as well as nautical terms (which I'm completely unfamiliar with). I enjoyed the books way more since I could figure it out inside my kindle instead of constantly having to pick up my phone to look up a phrase.

BookOrbit: It provides a plugin for KOReader that syncs your progress, annotations, etc.

KOReader is table stakes for any e-reader I might consider. If my Kindle died tomorrow I'd have a Kobo or similar on it's way to me within hours. I won't use any reader that doesn't support KOReader after using it for these last few months.

[0] https://bookorbit.app/