[aaronem]

Eventmachine and Celluloid required by default? Huh. I suppose that's preferable to just installing node.js directly, although I confess I can't see how. /s

[aikah]

> Eventmachine and Celluloid required by default? Huh. I suppose that's preferable to just installing node.js directly, although I confess I can't see how. /s

AFAIK nodejs is already an optionial rails dependency for the asset pipeline.

[Rafert]

It is through ExecJS[1] which allows different Javascript backends.

[1]: https://github.com/rails/execjs