I see no reason they couldn’t.

But we know there’s lots of other models that they’re already working on. We don’t know how similar or different it is from an OS perspective.

The reason is the lack of documentation from Apple.

Reverse engineering needs a lot of time and hard work, which may not be worthwhile.

Sometimes someone does this work, and everyone may benefit from it, but you should never count on this happening, unless you do the work yourself.