Install nodejs

In Debian, you should install a nodejs fresh enough, commands recommended below

curl -sL https://deb.nodesource.com/setup_6.x | sudo -E bash -

sudo apt-get install -y nodejs

Clone this repo then npm i

To run this server in backgrond, here recommend a tool-forever

sudo npm install -g forever --registry=http://registry.cnpmjs.org

forever start [your js]