Ubuntu

Installing Nodejs from the standard Ubuntu repos.

While this won't get you bleeding edge 0.12.x, it will it will get you a relatively recent and stable version of 0.10.x. This probably isn't a bad thing as 0.12.x is pretty new and not everything supports it - yet.

Having problems installing PHP5-MCrypt on Ubuntu 13.10? You're not alone. Apparently this is a bug with the latest version of Ubuntu, where they changed the default location for php modules, but mcrypt was apparently left behind. For full details and a workaround, feel free to visit this Ubuntu Stack Exchange thread.