Textures from Minetest Game "default" mod
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The licenses for such media can be found in the source for Minetest Game

License of "facade" source code
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Copyright (C) 2016-2018 TumeniNodes

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.

http://www.gnu.org/licenses/lgpl-2.1.html

License for "facade" custom textures
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Copyright (C) 2017 TumeniNodes
Attribution - ShareAlike 4.0 International (CC BY-SA 4.0)
https://creativecommons.org/licenses/by-sa/4.0/