Awesome

Ride - a Ringo in-browser code editor

Ride is a Ringo webapp extension that allows editing of the webapp in the browser.

Ride uses CodeMirror as editor. You need to fetch CodeMirror using git-submodule:

git submodule init
git submodule update

To enable Ride in a web application, add ride/ide to the list of extensions exported in your config.js module:

exports.extensions = [
    "ride/ide"
];

After restarting your web application, you should be able to access Ride at /_ride_/ in your webapp.

Note that giving someone access to Ride gives them full access to your machine. Think twice before installing Ride on a publicly accessible server, and definitely use some sort of protection (Ride comes preconfigured with basicauth middleware, you only have to define an auth role in your main app's config module).