We were able to get a build of Muffed running on it (Linux DesktopGL build as well), but just through Ubuntu in PC Mode as we don’t yet have dev access. We’d love any details you could provide on how you got into their dev program.
Also, for any looking for the VCS controllers support stuff, we had discussed that here (just for the sake of potentially useful interlinking): Support For Modern Atari VCS Controllers