Yeah, Jessie (and Stretch) should work fine without any issues.
I’ve updated the script so that it should work correctly with Buster on VirtualBox on a Mac. However, whenever I try to run Buster with RPi desktop the install seems to just freeze up, but that could be my machine. It worked fine using the regular Debian Buster install ISO from the Debian site!
I would love it if your could give it a try at some point. Thanks!