CC-BY-SA-4.0 (Creative Commons Attribution ShareAlike 4.0)

What does that license mean in laymans terms? It means you can fork this repository, augment it, add things, remove things, port it to other versions of Minecraft, and even use it as a base for your own modpack, but you must do two things:

1. Credit us. (That's the Attribution part)
2. Also use this license - which means your modpack must also be stored in a public repository, such that others can fork, augment, alter, and use it as the basis for hteir own modpacks (That's the Share-Alike part)