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GitHub User: PetriWessman
Thanks for the tip on rails_config, it's just what I was looking for over here. The built-in support for local overrides is nice, and more elegant than my current home-baked solution.
This is almost eerie. I was just now Googling around for an in-place edit solution in Rails... and suddenly it shows up as one of the latest Railscasts :). Awesome!