Can you add support for streaming audio for Sonos speakers?

tens of thousands of households use Sonos speakers and many of them have their own music rather than paying for streaming music or sometimes have music that you can’t find on streaming services. The only way to make that available on a Sonos system is to have a network attached storage and a directory full of music. Many users keep it in dropbox or another cloud service but then have to synchronise it to a network attached storage device or leave a computer on so that Sonos speakers can access it all the time. If there was a Sonos dropbox service that allowed the speakers to access music live from your Dropbox folder of music, that would be an incredible facility and I know of a large number of users that would use it. 

I for one would no longer need to keep a network attached storage powered on all the time and I would concentrate more on getting much more of my own custom music rather than relying on the music of streaming services, which will mean I will have more requirements for buying storage space. 

I’m sure there are technical challenges with providing a streaming audio service from dropbox, including making it easy to index the music that is there but I think it is well worth doing and this is not a new science, so I’m sure there is a lot of skill there that can make it happen very quickly