Install via npm:

$ npm install istanbul-systemjs

var jspm = require('jspm'),
	istanbulSystemJs = require('istanbul-systemjs');

var System = istanbulSystemJs.getInstrumentedLoader(new jspm.Loader());

System.load(...);

If you want to make changes to istanbul-systemjs, clone the repo and install dependencies.

$ git clone git@github.com:tkuminecz/istanbul-systemjs.git
$ cd istanbul-systemjs
$ npm install

$ npm test