The sample app contains three additional parts beyond Amber itself:
index.html
<body> tag.amber-contrib-jquery module,
providing jQuery and a wrapper over it.amber-contrib-web module,
providing Web package
that allows for DOM manipulation
and is inspired by Seaside.amber-contrib-domite module,
providing Amber-native DOM wrapper.silk module,
providing Silk package
that allows for DOM manipulation,
is meant as alternative to Web
and is inspired by stream metaphor and mochikit.