Introduction
To see how it loads any npm package in browser via unpkg please visit the following link and open you console. Files are also cached into indexdb, so you can also check that.
Getting started
To build a manifest
npm run start '{"keese": null, "react": null}'
The last line of output should be manifest you can feed to systemjs
Open up index.html and checkout index.js to see how I feed this to systemjs
Tested with SystemJS v0.20.9.
Stable in my testing but use it at your own risk.
Open to contributions!