src/index.html
<!DOCTYPE html>
<html lang="en">
<head>
<title>Foosball Tracker</title>
<link rel="stylesheet" href="/css/application.css" />
<!-- build:setup-env -->
<script type="text/javascript">
window.env = 'development';
</script>
<!-- endbuild -->
</head>
<body>
<div id="app"></div>
<script src="/scripts/application.js"></script>
</body>
</html>