"handle any layout that the community could come up with"
So anyone didn't come up with a Mac layout, or a Nordic layout, not to mention Nordic Mac layout?
JanneThis will totally support a Mac layout: the firmware is totally programmable, do whatever you want with it.
There’s no ISO-shape enter key, but even so you should be able to get pretty close to a Nordic layout if you fiddle with it a bit.
Personally, I suspect you can do quite a bit better than the standard Nordic layout (or any standard layout) if you put some thought into your layers.