You cannot:

Distribute, you are not permitted to post the files elsewhere on the internet, if you want a download link then you must link back here

You can:

Use Privately

Use Commercially, then you have to link back to this project on Curseforge, no matter if its a blog, video, or stream if it's available for all to see then you must link me,

Modify Privately, as long as nothing about the modification is posted online, it's fine to modify this pack.