[readingglasses]

Originally Posted by frankieGom

Here you go: https://github.com/kobolabs/Kobo-Reader

That doesn't contain a source code for the most functional parts of the actual ereading that the ereader does. It has everything else (networking, fonts, device driver). So, the source code is only partially GPL linux stuff and the code that does things you care about and has the problems, the actual kobo work, is closed source.