Initial Setup:

(install express) open a terminal in the folder and run - npm install express
(add your api key) copy api.sample.json to api.json and replace the emoji with your key

Start the demo:

(bring up the app) in the folder (ctr left click on folder through finder) open the terminal run node app.js
You should see this message - server started on port localhost:3000
(open the app) in the browser add localhost:3000
(connect) press connect you should see the connection ready
(stream) press the start button to start streaming