It has both synchronous and asynchronous APIs, and there's an example app built with Connect so you can see how the middleware works: andrew / node-sass-example.
var sass = require('node-sass'); // Async sass.render(scss_content, callback [, options]); // Sync var css = sass.renderSync(scss_content [, options]);
The project includes Mocha tests and more usage information in the readme.
Using TowTruck two people can interact on the same page, seeing each other's cursors, edits, and browsing a site together. The TowTruck service is included by the web site owner, and a web site can customize and configure aspects of TowTruck's behavior on the site.
It's not currently distributed as a module on npm, so you'll need to follow the instructions in the readme to install it. There's also a bookmarklet for adding TowTruck to any page, and a Firefox add-on as well.
I had trouble installing node-httpp on a Mac, so YMMV, but I like the idea of a P2P noVNC project.