Type following:
mkdir next && cd next
bower i --save daviddao/x-bio-pv
bower i --save webcomponents/webcomponents-lite #polyfill for all browsers
Create a minimal index.html inside the folder:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>BioJS Next Example</title>
<script src="bower_components/webcomponents-lite/webcomponents-lite.js"></script>
<link rel="import" href="bower_components/x-bio-pv/x-bio-pv.html">
</head>
<body>
<x-bio-pv></x-bio-pv>
</body>
</html>
You are done. A slightly more advanced Data Binding Example: http://biojs.github.io/next-example/