[olegp]

Isn't this what tag managers like Google Tag Manager do? How is this different?

[zackbloom]

This is exactly like Google Tag Manager, except expanded to encompass all client side code you would wish to install. You can install Google Analytics with Eager, but you can also install InstantClick [1], Disqus [2], or any code someone can write an install.json [3] for.

[1] http://instantclick.io/ [2] https://disqus.com/ [3] https://github.com/EagerIO/DeveloperDocs/blob/master/docs/ad...