Oh, your markdown-editor looks really shiny... have you since given up working with ometa? For some reason it never occurred to me that ometajs and nodejs might be a great match until I read your (entirely client side) stuff ... I guess I just needed the right context to make the connection.

The more I think about it, the ability to create ones own language and execute on the server or on the client as one sees fit, seems like a really nice match. And all without having to do something "heavy handed" like clojurescript or other "overt" compile-to-js stuff...

Hm, and here I thought I'd given up on nodejs, and was ready to move on to other server side languages ;-)

Writing a custom markdown DSL that can live-preview in the editing client, and render to static html on the server for high volume, low-overhead hosting sounds kind of appealing... (There are of course many ways to do this, but the idea of a single, concise grammar and rendering engine is very appealing....).