Ceylan-Myriad, a generic-purpose Erlang toolbox, as an OTP application library here (see http://myriad.esperide.org)
Ceylan-Traces, an advanced trace service, so that the user of an Erlang application can efficiently log, browse and search through detailed runtime messages that may be emitted concurrently (see http://traces.esperide.org)
Ceylan-WOOPER, a Wrapper for Object-Oriented Programming in Erlang, as an OTP active application here (see http://wooper.esperide.org)