https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode

Bedrock Crafter is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

You can use the mod and its source code however you want, just don't make money off of it directly (transformative works such as videos, let's plays, or anything like that are all okay). If you distribute something that remixes, transforms, or builds upon the mod itself or its source code, however, you must use the same license.