What's that got to do with support?Find me a better music scanner that is as powerful.
Runs on Nas, pc, pi. Is open source and still supported.
The licensed version of MinimServer. Maybe AssetUPnP and Jriver.
Seeing as the vast majority of users are satisfied with Sonos/BluOS/MiniDLNA the flexibility these systems offer just isn't needed in a commercial offering - unless they're going to rent it to you e.g. Roon.