2.2.4 Can I use Oracle, PostgreSQL, MS-SQL, ... instead of MySQL? Websphere, Weblogic, Tomcat, ... instead of Jetty? What is this Merlin thing?

Daisy contains the necessary abstractions to support different database engines, though we currently only support MySQL. Users are welcome to contribute and maintain different databases (ask on the mailing list how to get started).

The Daisy Wiki webapp should be able to run in any servlet container (at least one that can run unpacked webapps, and as far as there aren't any Cocoon-specific issues), but we ship Jetty by default. For example, using Tomcat instead of Jetty is very simple and is described on this page.

The Daisy Repository Server runs on top of a component runtime platform called Merlin. Generally you won't be aware of this, but if you see "merlin" popping up in process names, that means it is basically the same as the Daisy Repository Server.