A neat solution. So how is this done, is the SD card partitioned to store the image as well, or have you moved that to the internal memory? Is there a limit on SD card capacity from the Pi?
From the Volumio site:
Can I use the unused space of my SD card for music?
Yes. Volumio has a folder called 'INTERNAL' set aside for this, which uses the free space on your SD card. The folder is shared on your network as a Samba share called "Internal Storage". You can upload music files to that share and they will be shown in your Volumio music library, in a folder called 'INTERNAL'. Note that the folder does not appear in the music library if it is empty.
https://volumio.github.io/docs/FAQs/Audio_Sources.html
I really like the fact that you can build extremely small streamers (see my posts #83, 86 and 132 in this thread. * )
That said, two caveats: it‘s a little bit of work to add new music files to the server. You must ssh into the Pi as guest, mount the “internal“ volume, then copy the new files to it.
Adding new music is a little bit of a gyration compared to copying files to a NAS, etc. but I probably have 250 - 300 titles in my library and am adding few new titles - perhaps 12 - 24 new titles per year - so it’s not a biggie.
One other benefit is that I frequently stream Pandora, Spotify and Tune In directly from the Raspberry Pi streamers at high bit rates, freeing my phone, ipad, etc for other things.
The final bonus is that the streamers also act as Airplay endpoints so I can stream high quality audio to them (and my stereo) as I watch, say a YouTube video, etc.
I‘ve built half a dozen of these with various hats - Allos, Booms, Optical hats, etc. My current favorite that’s fast, compact and energy efficient, is the Pi 3A+ with an Apple dongle. See post #136 above. It works really well. The Pi Zeros are a bit slow and this config zips right along. The only downside is the red power LED is a bit obnoxious at night.
*Note, too, I’m having some issues with an apparent memory bug on the Pi Zeros. Though I have ~30gb of space available on my 64gb sd cards, I‘m getting a memory error - not enough storage available. working through that on the Volumio forums now. No problems on the Pi 3 A or Bs doing this.
Overall, I’m really pleased with these.