There's kinda a lot going on here. The main app is in app3, with libraries in core-, common-, library-, plugin-, there are some other 'dead' modules here as well that will be removed someday.
The primary focus for Orpheus is to build a nice core app that can be extended through plugins. External libraries are supported. Pluggable renderers are supported but must be bundled with the app, external renderers are still in the works.
OpenSilk projects are managed by repo
mkdir OpenSilk
repo init -u https://github.com/OpenSilk/repo-manifest
repo sync
cd Orpheus
./gradlew app3:assembleDebug
OpenSilk projects are managed with gerrit at review.opensilk.org
cd Orpheus
repo start my-branch .
#make changes
git commit -a -m 'stuffs'
repo upload .
GPLv3 http://www.gnu.org/licenses/gpl.txt
Portions under Apache2 where specified