I'm the author -- thanks. To keep things very clean, we created a :cron role for our deployment (which happens to be the same server as our :db). I imagine that

I'm the author -- thanks. To keep things very clean, we created a :cron role for our deployment (which happens to be the same server as our :db). I imagine that many people are running on one server and so the :app role is fine. The point is that you can deploy different cron schedules to your various server types using roles.