I have to write this post because a lot of people are confused about the relationship between RuneAudio and Volumio, and keep asking us explanations. So here's a short version of the story, limited to the facts.
We - Andrea Coiutti (ACX) and Simone De Gregori (Orion) - started the development of the webUI under the RaspyFi project, because it was the first distribution running on Raspberry Pi, platform which we owned at the time. The RaspyFi project had a huge boost of popularity when the 1.0 version was released in september 2013, also thanks to our webUI and other OS optimizations introduced by us, like the kernel profiles (it was a simple Raspbian running MPD before our contribution). Here you can see the result of our work at the time it was published:
Meanwhile, we were already working together with RaspyFi's founder Michelangelo Guarise on a new wider project called Tsunamp, but sadly things went wrong and we decided to abandon it and continue on different paths.
After the split, two different and independent projects were founded. We joined Carmelo San Giovanni (Um3ggh1u) and together we founded RuneAudio, choosing to rebuild the distro from scratch with Arch Linux as base. Michelangelo instead founded Volumio, using a slightly modified version of the webUI we developed for RaspyFi, in which he hadn't written any single line of code before that. This has to be clarified, as most people do not know who really is behind that huge work. Someone even thinks that RuneAudio is a fork of Volumio, when the truth is quite different. You can find our names in the credits of RaspyFi and Volumio projects.
These are the reasons why you'll find now three different projects with similiar purposes and almost the same webUI.
As the creators of the original RaspyFi's webUI, we are continuing its development under the RuneAudio project with the name RuneUI.
We are not collaborating anymore with RaspyFi and don't have any relationship with Volumio. We wish them all the best for the future.