Balena sound works really great for me and I enjoy using it a lot!
However, the less powerful models 1, 1B, and Zero W are not included in the device list when trying to deploy to a new device.
Hi there, is this the “Add device” modal where you’re checking for the RPI zero? I assume you selected a different device type when you were creating the application (eg. RPI3), and since the zero’s architecture is not compatible with the RPI3 one, you can’t add a RPI zero device to your application. What you’ll need to do is create an application with RPI zero as the default device type instead.
Answering your followup question: yes, multi-room should still work even if devices are in different applications as long as they are running on the same local network and the client configured with the local IP for the master.