The source code you can find in various programming languages in this repository including, but not limited to, Javascript and CSS source code is under the AGPL-3.0 licence.
The creative work contained in the main code repository, on my Github mirror, and on my website langue.phundrak.com is dual-licenced between the GNU Free Documentation License (legal code) for the text and the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0, legal code) license.
Copies of all the mentionned licenses can be found in this code repository.
If you wish to obtain a special license that is incompatible with the current ones, please contact me at lucien@phundrak.com so we can discuss it.