A gem I want to use called paperclip requires imagemagick to be installed. How can I get rails to manage these non-gem dependencies (for team/version controlled projects where you can't just ask everyone to install the dependencies for your feature).
I have been searching for an answer and cannot find an adequate one.
You just can't. Paperclip execute command (like when you open your terminal), it doesn't use an API or a library for imagemagick. So you can't manage your system with Rails, for that you have specific admin tools.
Or you can create a simple script for install this software but it's not very expendable.