I stopped using my SBT a while ago and my NAS more recently. I run LMS using Picoreplayer on a Raspberry Pi attached to a 512GB SSD containing all my music and I can use Spotify Premium. I control it from my phone using Squeeze Control and it synchs nicely with my SB Radio. It works a treat.
Cheers
Alastair
RPI4/PI2AES running PiCorePlayer/LMS-> AQ Carbon AES -> Topping D90 DAC-> Khozomo Passive Pre-Amp -> 4x Temple Audio Monoblocks powered by 2xLiFePO batteries->Van Damme Black Bi-Wired to B&W 804 Nautilus and Sommer Carbokab 225 Interconnects