A simple Google search will reveal that there are a number of different App_Config plugins for Rails. After comparing them side by side, I have decided to use the one by Christopher J. Bottaro.

It features:

• simple YAML config files
• config files support ERB
• config files support inheritance
• access config information via convenient object member notation

I just fixed a bug last night (which was pulled in to the main repository) where it could throw errors when used as a Rails plugin (i.e. via rails plugin install).

Make sure you go read the instructions on how to use this handy plugin.