It's a great reader app, but as a reader of Japanese light novels it's sadly not fit for my personal purposes - last I checked vertical text is only possible in a really, _really_ hacky way (using a font that is turned sideways), and dictionary support for Japanese (or, say, Finnish with its complex lemmatization) is lacking behind browser extensions such as Yomitan, or mobile apps like Hoshi Reader that have Yomitan dictionary support.

I don't think KOReader handles fixed-size epubs terribly well too, and most of my manga (usually bought on Rakuten Kobo) comes in that format.

For reading English or native language books on non-Android e-readers it's a godsend.

BookFusion recently introduced a KOReader plugin (no affiliation). Combining that with a Kobo has finally let me break free of the Kindle ecosystem

I installed this the moment I got my Kobo Libra H2O. Mostly read fiction from the 1800s and early 1900s and I did not want to fight whatever proprietary software the reader came with (Kobo is probably better than the Kindle for this, but I never tried it!)

I have a problem with epubs though. This need to support every single thing under the sun makes the pipeline exceedingly complex. All you need for a vast majority of fiction is:

- headings

- paras

- emphasis (bold/italic)

- block quotes

Add simple "image" syntax to it to display maps etc from detective stories

Basically a ruthlessly cut down version of markdown.

The mini-readers from Xteink came in at the right time for such experimentation.

It took me some time to know my way around it, but wow. I have it configured with some plugins, like zen ui and bookshelf. I Also use BookOrbit to sync reading progress and annotations between devices. Loving it.

Great piece of software. Jailbroken my Kindle when the UI was becoming way too slow, then discovered Rakuyomi [1] and that alone is worth the jump, especially with plugins like SimpleUI to make the UX better

[1] https://github.com/tachibana-shin/rakuyomi

KOReader is so much better, including in how it renders typography and does typesetting than what ships on Kobo devices by default, it's sort of wild.

I actually made a mod to try to upgrade Kobo's built-in reader so it's more correct, i.e. more faithful to how KOReader renders text. Sharing it here since it may be interesting for anyone with Kobo e-readers: https://github.com/nicoverbruggen/NickelTypeFix

For anyone with a Kobo who only wants to be able to sync with calibre-web without installing anything on your device, here's a link to instructions:

https://jccpalmer.com/posts/setting-up-kobo-sync-with-calibr...

I'm not associate with this person, just know that these instructions worked for me.

I use it because it supports opds and old Android versions (I have an old Android eBook reader). I host my books on calibre web and never need to do anything beside opening the opds section on koreader and picking what to read.

I love KOReader on Android, but unfortunately it requires granting permission to manage all files on the device. I would prefer if it used the approach most apps use, which is to select a folder on the device that it can access. Then I can move all my books into that directory and KOReader would not have access to all of the data on my phone.

KOReader is awesome and it's my go to for most e-reader reading. I've recently been trying out Plato (https://github.com/baskerville/plato) as well and it has a really nice experience for reading PDFs. It crops the margins and pages through the PDF in chunks nicely.