"Intellisense" in emacs for clojure (inline docs & reminder drop-downs)?

Question

In this live-coding-in-clojure demo video of Overtone, the author exhibits emacs flying through inline docs & reminder drop-downs. At 54 seconds in, he even emphasizes the fact, but doesn't drop the essential hint about how to enable it.

This is the one-big-missing thing in my otherwise-ideal emacs set-up (I use nrepl and leiningen) and the only thing that draws me to the otherwise-dreadful mouse-oriented tools like Intellij and Eclipse. I'm dying in need for this facility!

I don't have any idea what melpa packages to install to set this up, and I don't know what clever one-word name I would call it, so I don't know how to search for it. "Intellisense for Clojure in Emacs" is as close as I've been able to come to a search term, but it doesn't find anything useful.

Answer 1

He is specifically using the Overtone/emacs-live emacs setup, which contains all the configuration for what you see in the video. The auto complete and doc strings appear to be provided by the ac-nrepl package.

Answer 2

I think you're asking about autocomplete.el. Take a look and see if that isn't what you're referring to.