install mongodb on your local system if not done before by following this link
after this type the command below in your terminal (ps-node must be installed in your local system)
Fork the repository and clone it.
Open your favourite Code Editor and write the following code to clone it
git clone <your forked Repo url>
After cloning , type
cd XMEME
npm install
this may take few seconds.
npm start
Now,open google chrome and enter localhost:8081 to navigate the site.