Creative Commons Attribution-NonCommercial-ShareAlike (CC BY-NC-SA) License with Additional Clause:

This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

In addition to the CC BY-NC-SA license terms, any derivative works based on this project must be contributed back to the original project and cannot be distributed as separate projects. All contributors must agree to this condition when making modifications to the original work.

Appropriate credit — If supplied, you must provide the name of the creator and attribution parties, a copyright notice, a license notice, a disclaimer notice, and a link to the material. CC licenses prior to Version 4.0 also require you to provide the title of the material if supplied, and may have other slight differences.

For more details about the CC BY-NC-SA license, please visit: https://creativecommons.org/licenses/by-nc-sa/4.0/
