Welcome to hyperkitty
HyperKitty is an archiver project for Mailman, version 3.
It aims at implementing http://wiki.list.org/display/DEV/ModernArchiving
You can read the main documentation online.
There is a demo server available, but it's a development server, so it may be broken at the time you access it. It's usually OK though. Currently it is running a version of HyperKitty? from July 2014, because recent changes in Mailman make it incompatible with !HyperKitty (the Python 3 port), and we're in the process of fixing that.
Design mockups are available at: http://linuxgrrl.com/fedora-ux/Projects/Mailman/Prototype%201/
More designs are available as blog posts:
The source are hosted on Github: https://github.com/hyperkitty. You'll need all three repositories.
HyperKitty, being a Django application, can be used with any other Django project. If you are deploying HyperKitty standalone, you'll only need kittystore, hyperkitty and hyperkitty_standalone.