To get that "on-the-fly-thumbnails-from-urls" behaviour in ruby/rack, take a look at Dragonfly. http://markevans.github.com/dragonfly/ http://markevans.github.

To get that "on-the-fly-thumbnails-from-urls" behaviour in ruby/rack, take a look at Dragonfly. http://markevans.github.com/dragonfly/ http://markevans.github.com/dragonfly/