Just because something should exist, doesn't mean it can be created today. The effort to build and attract open source projects is a monumental task. Unless you're offering something BIG - there's alot of inertia to overcome.
I'd focus on building on top of the GitHub API to create those features you want. Not only will you focus your time on the unique stuff, GitHub can help with distribution and discovery.
Just because something should exist, doesn't mean it can be created today. The effort to build and attract open source projects is a monumental task. Unless you're offering something BIG - there's alot of inertia to overcome.
I'd focus on building on top of the GitHub API to create those features you want. Not only will you focus your time on the unique stuff, GitHub can help with distribution and discovery.