Status of work:

UI for simple management finalized
Control up to 5 rooms
Player with full comands, volume, progress bar, name song etc.
Playlist full management (Add/remove/play)
Database Full Management (Add/add and Play/Update)
Add/remove NAS for one or all rooms
WebRadio Playing
WebRadio Add/Remove (a dedicated .php file to be added to RaspyFi Server)

I would like some screenshot but I don't know if possible and how.
However soon on GooglePlay

Bye

Unfortunately I'm not familiar with GitHub
If simple to do just let me know how

Since we decided that simple usage and good user experience is the most important thing, we want to implement autoconfiguration of devices from the first release. For this reason I think we need to delay the official release of some weeks.
Currently we already found how to implement working autoconfiguration; but we need to figure out how we want to design the user interface and the best an simpler procedure for the users when multi devices.
Stay tuned, I will be back soon

Hi harmsel,
the app is quite finalized, supporting also autoconfiguration and it will be published soon. I hope in days.
For sure your comments and suggestions for improvements will be appreciated a lot. I and admin also will let all know when it will be published.
Please have just some more days patience