You can find the full source code for this website in the Seam package in the directory /examples/wiki. It is licensed under the LGPL.
Seam is a collection of portable extensions (modules) for CDI. This means two things:
Note that Weld extends CDI support to servlet containers, like Tomcat and Jetty, as well.
A number of other pages delve deeper into the Seam 3 architecture:
The following diagram provides a schematic for the overall architecture of Seam 3 and how it fits in with CDI and the application server.