Being an Apple device, there will be Apple apps for tinkering with the HomePod as well as 3rd party apps for playing with and exploiting the wide array of uses for the HomePod.
https://support.apple.com/en-us/HT208241
https://support.apple.com/en-us/HT208341
Ever since iOS7, I've found Apple iOS apps to be pretty unintuitive, unattractive, and just much less fun to play with. As a result, it's soured my enthusiasm for engaging with my iPhone as much as before (an iPhone that's still better than Android's awful Material Design UI, for good or worse there...) and investing in more Apple-centric hardware. Maybe too few others feel that way, or else Apple would have woken up by now after 4 years of all the white-out less intuitive UI iOS software, but when Apple returns to an iOS & software that returns the focus onto intuitive interaction instead of unecessarily made-up UI cues based on randomness and minimalist fashion, I'll be much more inclined to break out my wallet more often. I can't be alone in feeling that way. That's all I meant.
I would make it fun by returning to using time-tested intuitive UI cues that look like a real designer put some thought into things, instead of focusing on this imagined need to have the content blend into the background by making everything a white-washed light grey with non-button text for actionable cues so as to not distract the user (gag) but which actually distract the user by often being confusing and slowing down the productive process.