I am not sure it will be very usefull but since I wanted to experiment with git, I found that adding a git repository for raine was a nice way to do it.
For those who wonder, git is a version control system for developpers. With it you can get the current raine source without waiting for a release (for now, only small fixes since last version, nothing major).
EDIT : you get a new git icon to explore the wonders of git on the lower right corner, there is also a repository for zfs-fuse there, which kept me busy this summer...