http://book.klll.cc/ebooks/subject/17582.opds 2025-08-04T15:14:22Z Books about Open source software (sorted by popularity) Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-08-04T15:14:22Z https://book.klll.cc/ebooks/5768.opds Free as in Freedom: Richard Stallman's Crusade for Free Software Sam Williams