The open source Logitech Media Server still receives updates and used in conjunction with raspberry pis with decent audio adapters, it works fine. It also works

The open source Logitech Media Server still receives updates and used in conjunction with raspberry pis with decent audio adapters, it works fine. It also works with old Squeezebox hardware, of course. Good controller apps exist on android and iPhone now as well. (I mean, it depends on your definition of polished...)