the beginner's handbook is published under Free License WTFPLv2
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WTFPL

DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE

Version 2, December 2004
Copyright (C) 2004 Sam Hocevar sam@hocevar.net

Everyone is permitted to copy and distribute verbatim
or modified copies of this license document,
and changing it is allowed as long as the name is changed.

DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE

TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
    0. You just DO WHAT THE FUCK YOU WANT TO.
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More details on the different licenses used for the beginners handbook,
please refer to the "Sources & Licenses" chapter.