$> brew install node
$> npm install ntwitter socket.io
$> node app

The keys needed can be obtained from dev.twitter.com after setting up a new App => https://dev.twitter.com/apps/new

• var consumer_key = 'xx';
• var consumer_secret = 'xx';
• var access_token_key = 'xx-xx';
• var access_token_secret = 'xx';

(ou demandez moi)