NixOS/nixpkgs — pull request #3285 by ehmry (2014-07-15 14:56:51+00:00)
Title: Polipo

Polipo is a caching proxy designed to be used by one person or a small group of people.

As far as I know it is the only caching proxy in nixpkgs, and is very handy to have when using multiple or cache-less browsers.