Now that I know how to find a Ruby open source project, how do I judge which ones are most likely to help my career prospects. I've never worked in the Ruby world and need something that might show off my potential to be a good hire. Or is any project as good as anything else as long it's something you're interested in? Also, would it make a difference to how you are judged by an employer if the project is your own or someone else's? Or is it a pipe dream to think that someone is going to hire me for a Ruby/Rails job on the basis of my open source contributions?
I would really like to work in the Ruby world but not sure how to break in, given the scarcity of positions (contract and full time) in the NY region at the moment.