napalm

An express server that serves libraries published to npm.

A request of the form: http://napalm-server/underscore/1.4.4/underscore.js will result in the underscore.js file being served if underscore@1.4.4 has been published to npm and that file exists in its root.

The server installs and caches the npm modules it attempts to serve.

Self-contained express app server:

npm install; // to install that app once cloned
node app; // to run the express app

http://host:4000 // to access the app locally.