The texts and the images are under Licencia Editorial Abierta y Libre (LEAL). You can read it here.
“Licencia Editorial Abierta y Libre” is translated to “Open and Free Publishing License.” “LEAL” is the acronym but also means “loyal” in Spanish.
With LEAL you are free to use, copy, reedit, modify, share or sell any of this content under the following conditions:
Anything produced with this content must be under some type of LEAL.
All files—editable or final formats—must be public access.
The content usage cannot imply defamation, exploitation or survillance.
Finally, the code is under GPLv3. Now, you can fork this shit: