Yes, we built [1]tilemill and [2]mapbox hosting using this technique. It's pretty awesome when it works, but can be quite tricky in other ways. The first is a

Yes, we built [1]tilemill and [2]mapbox hosting using this technique. It's pretty awesome when it works, but can be quite tricky in other ways. The first is a hybrid desktop/web application to design maps using a CSS like descriptor language. The desktop app downloads actually bundle a local node server in an os specific wrapper, with a web view. The application works just as well hosted and accessed by multiple user. The latter is a cloud service that allows you to host rendered map layers and remix/share them. Foursquare recently switched to using mapbox for all their browser based maps. I'd estimate at least 90% of the code is shared between the server and the client, with the server side generally only differing when you need to access resources not available to the client (databases, files on the server etc). The user interfaces can be rendered on either the client or the server (w/ jsdom) as needed. [1] mapbox.com/tilemill [2] mapbox.com/hosting