The Heroku offering is about providing a stack that you don't need to know anything about in order to look after a decent application. You deploy with Git, giv

The Heroku offering is about providing a stack that you don't need to know anything about in order to look after a decent application. You deploy with Git, give it the resources it needs and forget about it. You've no need to learn UNIX, or anything about packaging, or security, or networking and so on. You just need to care about your application. Saying this, there's lots of things deployable to Heroku right now, and even more via the Buildpacks system. Yes, at first Heroku was just Ruby, but those days are long gone, most modern platforms that run on UNIX are deployable to Heroku in just a few minutes.