Yeah I was looking at kind of making a heroku setup on my servers sorta like Dokku, but I'm not a real big fan of Dokku. And I wanted to use CoreOS and Docker, but I realized that I can't just include all possible programming languages into a container to be built. So I've opted out of that and just build custom containers based on the app I am deploying.
I came across your guys' stuff about a month ago and was intrigued by the cedar stack of heroku being dockerized and started playing with it.
Immediately stopped when my simple hello world node app was 1.5GB in size.