We use Google Groups for Nuvola Player Development forum/mailing list. Don't hesitate to ask any questions.
Nuvola Player uses Git version control system for its code base and GitHub for both code hosting and issue tracking. All official Git repositories are located under Tiliado organization account. The code-base is divided to three parts:
nuvola-app-...
.Nuvola Player 3 hasn't chosen any platform for translations yet.
If you would like to contribute to Nuvola Player project development, there are two areas you can jump in.
Core development - development of the Nuvola Player run-time that loads web app integrations and interacts with the Linux desktop components. Skills: Vala, GTK+ 3, WebKitGtk+, GIT, JavaScript
Service Integrations - service integration scripts that runs in the web interface and communicates with Nuvola Player run-time. Skills: JavaScript, DOM, HTML.