Twapperlyzer is divided in two parts:
 - one is responsible for download and aggregating data this is a node.js program
 - the other one is presenting the data, this one is a couchapp

to get it working you need node(>=v.0.49) and npm then 
git clone https://github.com/ekorn/twapperlyzer
cd twapperlyzer/dataprovider
npm install -d
npm install forever -g
cd config
cp default_template.json default.json
adjust default.json
cd ..
forever start app2.js
cd ../viewer 
npm install couchapp -g
couchapp push app.js url
create the couch config