pkg-epub is a program that bundles a collection of HTML and other files into an EPUB book. The resulting eBook can then be read on various readers or converted (e.g. with Calibre) to another format.
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.