I’ve been enjoying Administrate, found through Chris Oliver’s Jumpstart Rails.
I enjoy Administrate precisely because its first guideline is “No DSLs (domain-specific languages)”. I previously used RailsAdmin in my app and indeed did end up quitting because of its DSL and limited maintenance. I managed to stick with Administrate and was able to submit contributions when I encountered some limitations. Two developers from Thoughtbot seem to be regularly maintaining the library, usually every week, and they are steadily preparing for a 1.0 release (I personally run our prod app using the master branch, as their release speed is a bit too slow for my liking).
