Got a git repo you want a notification for when others commit to? Maybe it's your work repo (doesn't have to be github, can be any git repo). This app fits the bill. On the other hand if your looking for something to monitor github pull requests and comments, checkout Trailer.app.

I had planned on building a mac app which notified you when there was a new post by one of your subscriptions in your must-read section on feedly; a notification would pop up and if you clicked it it would open the page and mark it as read in feedly. Then I came across this app by Oleg Shevchenko (olsh on github), he basically built the same thing, but built it on chrome, so it's cross-platform, and you can pick whichever folders you want it to monitor for new articles. I have been loving using this chrome extension for monitoring my must-reads on feedly.