Apple's HomePod will support iTunes Match streaming via Siri
Owners of the HomePod -- shipping on Feb. 9 -- should be able to ask Siri to stream any files uploaded to iTunes Match, not just material hosted on Apple Music.

Match support has been affirmed by iMore's Serenity Caldwell, as well as Daring Fireball's John Gruber. Apple's official HomePod page only mentions Apple Music, which typically costs $9.99 per month.
iTunes Match is included with Apple Music but also available separately at a cost of $24.99 per year. The service lets users sync their local music with the iCloud Music Library, including imported tracks that might not be available on the iTunes Store or Apple Music.
That could make the HomePod more attractive to some early adopters. The speaker doesn't offer Siri support for third-party streaming services like Spotify or Pandora, though people will also be able to broadcast music via AirPlay or Bluetooth.
The $349 HomePod was originally due to ship in December, but was hit with a last-minute delay as Apple raced to finish development. At launch the device will still lack some promised features, such as stereo pairing and multi-room support.

Match support has been affirmed by iMore's Serenity Caldwell, as well as Daring Fireball's John Gruber. Apple's official HomePod page only mentions Apple Music, which typically costs $9.99 per month.
iTunes Match is included with Apple Music but also available separately at a cost of $24.99 per year. The service lets users sync their local music with the iCloud Music Library, including imported tracks that might not be available on the iTunes Store or Apple Music.
That could make the HomePod more attractive to some early adopters. The speaker doesn't offer Siri support for third-party streaming services like Spotify or Pandora, though people will also be able to broadcast music via AirPlay or Bluetooth.
The $349 HomePod was originally due to ship in December, but was hit with a last-minute delay as Apple raced to finish development. At launch the device will still lack some promised features, such as stereo pairing and multi-room support.
Comments
But if your money is more valuable than your time (or you need to support non-Apple devices), then it remains to be seen whether HomePod can find your locally shared iTunes library. My guess is that it should be able to given that the AppleTV can do it, but there may be technical hurdles to indexing and searching local music libraries using Siri.
Fairly, I have a surplus iPod I could set next to it and stream free stuff. I guess the "all works together" moniker is now "it all works together for a fee."
Am I missing something? Why won’t the controls work?
Apart from the fancy dynamics with the sound, I fail to see the point in this device. I'm sure it will sell but ... {remains totally unconvinced}
Go get the Sonos and stop bitching if that's what makes you happy. This isn't for you obviously. Not every Apple product can be for each individual person. Apple can't suit everyone's needs/wants in one product.
The way the Apple TV 4K all but ignores my locally-stored video content leaves me feeling less than optimistic about the HomePod being able to work well with a Homeshare library, but it would be nice if it did.
For me, this article is one more nudge towards getting a HomePod for the kitchen. Apple Music isn't a good value for us since we already own just about everything we'd ever want to hear and our purchases of new material add up to less than what an Apple Music subscription would cost (even after we factor in the cost of Match), so confirmation that we can play our library on the HomePod without needing another device to "push" content to it is welcome news!
And as others pointed out the speaker has controls too. But you can still use the iTunes Remote app on a Mac running iTunes or Home Sharing on the network.
I don't, no.
Obviously. And neither is Sonos.
https://support.apple.com/en-ca/HT204146
If you convert your videos to an iTunes supported format (.m4v) using Handbrake, you can add them to your homeshared iTunes library and they'll show up on your Apple TV under "Home Videos".