12.3.2 Free Software Foundation

At this time there is no formal connection between Debian and the Free Software Foundation. However, the Free Software Foundation is responsible for some of the most important software components in Debian, including the GNU C compiler, GNU Emacs, and much of the C run-time library that is used by all programs on the system. FSF pioneered much of what free software is today: they wrote the General Public License that is used on much of the Debian software, and they invented the "GNU" project to create an entirely free Unix system. Debian should be considered a descendent of the GNU system.

FSF can be reached at: https://www.fsf.org/.