This module does as much as it possibly can, to bootstrap an npmE installation on an unknown OS.
It's preferrable that you run on one of npm Enterprise's suppored platforms, which include:
This installer can be used to bootstrap npmE on OSX for testing:
brew install couchdb
brew install nginx
brew install redis
sudo bash
git clone https://github.com/npm/npme.git
cd npme
node ./bin/npme.js install --user your-username --group staff
/etc/npme/bin/install-couch-app.sh top populate the CouchDB app.