See repo for latest version. As of 4/22/26:

https://creativecommons.org/licenses/by-nc-sa/4.0/ (modified)

Attribution-NonCommercial-ShareAlike 4.0 International with the following modifications:
- Some files and assets may be separately licensed
- Don't redistribute executables. Instead, link the official CurseForge or Modrinth download pages
- The above line only applies if you don't create a fork (without intent to remerge) and make significant improvements. (Explanatory Note: If this project is abandoned, you won't need permission to fork and maintain it)
- You are encouraged (but not required) to contribute to the original project, rather than forking
- This mod is provided without any warranty that can be disclaimed. Use at your own risk
- If any provision of this license shall be held or made invalid by a court decision, statute or rule, or shall be otherwise rendered invalid, the remainder of this license shall not be affected thereby

Original author: No Name Provided (https://github.com/no-name-provided, https://www.curseforge.com/members/no_name_provided/projects, https://modrinth.com/user/No_Name_Provided)