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