GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007

Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.

[Full GPL-3.0 license text would go here - you can get it from https://www.gnu.org/licenses/gpl-3.0.txt]