http://blog.fogcreek.com/the-trello-tech-stack/
Since node.js came up last night I thought this was worth sharing. MongoDb, Redis, Node.js, Coffeescript, Backbone.js.
What I wonder is when are we gonna go "full stack" with coffeescript. Can I write Node.js as Node.coffee?
This paragraph is interesting:
The Trello servers serve virtually no HTML. In fact, they don’t serve much client-side code at all. A Trello page is a thin (2k) shell that pulls down the Trello client-side app in the form of a single minified and compressed JS file (including our third-party libraries and our compiled CoffeeScript and Mustache templates) and a CSS file (compiled from our LESS source and including inlined images). All of that comes in under 250k, and we serve it from Amazon’sCloudFront CDN, so we get very low-latency loads in most locations. In reasonably high-bandwidth cases, we have the app up and running in the browser window in about half a second. After that, we have the benefit of caching, so subsequent visits to Trello can skip that part.