I've always been interested in Lua because of it's similarities to Javascript and Python, two languages that I cherish dearly. With the advent of "server-side" Javascript (node.js, V8, etc...) the need for things like Lua isn't as strong, but I'd still love to play around with it. This is Zed Shaw's attempt at challenging himself by building a micro Lua web-framework to play nice with his Mongrel2 server. Pretty neat!