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  • Stefan Schwetschke thinks this is interesting:

The JavaScript package manager is not just another package manager for JavaScript. This is basically a mediator and manager for SystemJS that helps you look up packages from package repositories, such as Bower or NPM, and it creates the necessary configuration for SystemJS.

From

Cover of Mastering Angular 2 Components

Note

JSPM is only a broker, and it delegates to other package repositories.