https://github.com/listenrightmeow/dbot
http://pgarbe.github.io/blog/2015/03/24/how-to-run-hubot-in-...
There are a couple articles/repos out there with detailed steps on running Hubot on AWS. While the ease and simplicity of deploying Hubot outside of Heroku is not a tenth as easy, there are a couple of options out there.