Oy! The name 'rack' is already taken, referring to abstracted-out request-handling glue code that Rails et al are built on top of :/
Well that’s not the first time two pieces of software have the same name.
I know, it's just painful to see two projects so close together sharing a name, esp. after a project is shown to the public
Not unchartered waters for the Convox folks:
https://github.com/ddollar/foreman (Convox employee)