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KOReader: Open-Source eBook Reader

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Re: KOReader: Open-Source eBook Reader

#91
post #90

How does it compare to the other big foss e-book app, FBReader? Does the focus on eink mean it's mainly aimed at jail broken eink tablets? Or aimed at phones as well?

You don't need to jailbreak, there are many eink tablets that will run it via sideloading (Kobos, for example, and I believe Nooks as well) and eink Android devices (like the BOOX line) that can just install it from F-Droid

Re: KOReader: Open-Source eBook Reader

#92
If anyone is interested in helping Kavita, an open source self hosted reading software, finish off the Koreader Sync support, please take a look at this PR. It's 90% complete and just needs some finishing polish. The contributor got busy and hasn't returned for some time.

https://github.com/Kareadita/Kavita/pull/3311

Re: KOReader: Open-Source eBook Reader

#93

Got this on my Kindle after the jailbreak came out in January. It's fantastic, especially the OPDB index + self hosted calibre-web means I can just download an epub on any device, drop it on a webpage, then search it on KOReader immediately. I did not want to use USB or Amazon's plumbing to transfer, so this is great. Tons of customization over the built-in reader.

How do you connect your Kindle to the internet to access OPDB/Calibre-web without losing your jailbreak? Every time I connect my Kindle 4 to the internet, it disables developer mode and I have to rejailbreak. This is despite using an update disabler plugin (I've tested them all).

I used Winterbreak [0] and used the renameotabin extension to block updates.

[0]: https://kindlemodding.org/jailbreaking/WinterBreak/

Re: KOReader: Open-Source eBook Reader

#94
post #20

It says it focuses on e-ink screen integration. What are the unique challenges of e-ink screens for reading ebooks? At least in the past, screen refresh was slower; the reflective, rather than luminescent screen changed contrast and color performance; resolution was well behind standard screens. The first two seem easily solved; the third hard to mitigate beyond larger print and appropriate typefaces. What else?

How long was it since you saw an e-ink screen the last time? Resolution has been excellent for a while now. Refresh is still slow, but that doesn't matter for reading books. Contrast is fine, but not comparable to other display types.

How high is resolution? The example screenshots look pretty low.

Re: KOReader: Open-Source eBook Reader

#95

I looked into building the emulator for KOReader and it requires CMake, Meson, and autotools... Why are 3 different build systems necessary?

It includes a bunch of dependencies as submodules and builds those as well. I haven't verified that's the reason, but I'm willing to bet a decent amount of money it is.

Re: KOReader: Open-Source eBook Reader

#96
post #94

Earlier quoted context omitted.

How long was it since you saw an e-ink screen the last time? Resolution has been excellent for a while now. Refresh is still slow, but that doesn't matter for reading books. Contrast is fine, but not comparable to other display types.

How high is resolution? The example screenshots look pretty low.

Depends on device, but retina quality I would say. You cannot see individual dots so text appears like high quality print. The example screenshots are high resolution, you have to click them.

Re: KOReader: Open-Source eBook Reader

#97
I like KOReader, but gave it up in favor of the default software on my Kobo Clara BW, mainly because of library navigation. I prefer to keep all my books on the device, but the only way to find them (as far as I can tell) is by author. I haven't had the time to go through my whole library to fix the author sort, and it became a real problem to find books I already possess that I want to read.

Fortunately I didn't delete KOReader, so all my setup is still there if I find a reason to go back.

Re: KOReader: Open-Source eBook Reader

#99

Book Story on Android is a much more modern FOSS eBook reader and supports other formats too. https://github.com/Acclorite/book-story

I've used CoolReader in the past, and recently suggested its sucesslr LxReader[0] to my partner, while I like the simplicity in MuPdf[1]. What do you think are the biggest advantages of Book Story? I might give it a try.

[0] https://gitlab.com/coolreader-ng/lxreader

[1] https://f-droid.org/en/packages/com.artifex.mupdf.viewer.app...

Re: KOReader: Open-Source eBook Reader

#100
post #94

Earlier quoted context omitted.

How high is resolution? The example screenshots look pretty low.

Depends on device, but retina quality I would say. You cannot see individual dots so text appears like high quality print. The example screenshots are high resolution, you have to click them.

I think you're right about the screenshot resolution.

Something is wrong with the layout that makes it awkward for me to read. The word spacing, at least, seems awful. Look at the lines "meaning behind printed words ..." (near top) and "widely believed that ..." (near bottom) compared to the lines above and below them.

Maybe it's the full justification adjustment - the text in the box is much better. Even the dictionary popover has word spacing problems.

That's a big deal for reading long-form.

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