On top of the interfaces, an arbitrary number of filters can be applied at runtime to provide advanced forum services. Some filters examples include syntax highlighting of Java code, translation from one language to another, and profane language filtering. The forum application is powered by a pluggable backend. Pluggable means that forum threads and messages can be stored on the filesystem, in a database, or in some new and novel way. Currently, a high performance database backend exists.
Schemas are available for most major databases, and more are being added all the time.