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KOReader: Open-Source eBook Reader

(github.com)
419 points charleshan | 2 comments | 3/31/2025, 7:52:00 PM | HN request time: 0.466s | source
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no_time ◴[4/1/2025, 11:00:00 AM] No.43545307[source]▶

Very impressive how the almost the entire application is written in lua(JIT). Particularly impressive how it is fast enough to do CPU blitting/blending[0]

I wonder why is lua so rarely utilized like this on its own. Such a neat language.

[0]: https://github.com/koreader/koreader-base/blob/master/ffi/bl...

replies(1): >>43548022 #
1. jszymborski ◴[4/1/2025, 3:33:00 PM] No.43548022[source]▶

Running on my Pixel 6a, I wouldn't really characterize it as super responsive. This context, I think, helps me understand why.

replies(1): >>43555243 #
2. heinrich5991 ◴[4/2/2025, 10:17:00 AM] No.43555243[source]▶

Very snappy on my Pixel 4a. Not sure what's causing the performance problems on your phone.