The HomePod mainly supports Apple’s own platforms and technologies, including Apple Music, iTunes Store purchases and Match, iTunes podcasts, Beats 1 radio, and AirPlay (with limited third-party support for internet radio services iHeartRadio, Radio.com, and TuneIn coming in the fall of 2019), while an iOS 11 device is required for initial setup. HomePod can serve as a sound bar within a home entertainment system when selected through an Apple TV.
https://en.wikipedia.org/wiki/HomePod