Can I create a Mac license package from a PC

We're a mainly Windows environment and I have used the Creative Cloud Packager to create device licenses and it worked great.

We've got a new hire that bought a Mac and I need to license CC for his machine. Through Windows, the CC Packager only seems to create a license package for Windows.

Is it possible to create a Mac license from a Windows machine, or will I have to install the packager on the user's new Mac first to create the license? We don't really have other Macs in our environment that I can reasonably do this from.