It’s also worth noting that this isn’t really free software. It uses a Creative Commons license with the noncommercial and no derivatives clauses. At best it is “source available”; you cannot distribute any changes that you make or adapt it for use on systems not anticipated by the author.
Does the package even contain GPL code, or any of his code at all? From what I can tell the AUR package is just an installation script that pulls in source from the official git.
