The project is entirely open source. It takes a single Pandoc Markdown source file and produces HTML, EPUB, PDF, man pages, GNU Info, an audiobook, an HTML-integrated audio player that highlights the content as it plays, and an MP4 output for the "video audiobook. " It's generic enough to be reu...
Source: [Hacker News](https://sebastiancarlos.github.io/hacker-fables/)