My name is Paul. Currently I use Logitech Media Server (LMS) with SqueezeControl app.
LMS is nice but old, and the webr interface for configuration too complex.
Because there is a BruteFir plugin for Volumio, I started playing with Volumio.
What I like about Volumio is the beautiful user interface for configuration. Well done!
What I currently miss is a more extensive way to configure source visibility.
I will post a question about this in the feature requests topic.