You can clone with
HTTPS or Subversion.
The Lounge is a proxy-based partitioning/clustering framework for CouchDB, originally written by Kevin Ferguson, Vijay Ragunathan and Shaun Lindsay at Meebo.com.
There are two main pieces:
As well as an assortment of smaller scripts and whatnot.
To get started using this, grab a copy of the source tree and follow the steps in BuildInstructions.