Latest version is 4.1.2. Artemus Release Notes.
Artemus is a template-based markup language. It's basically a Perl module (usable separately), but also includes a utility program to be used from the command line.
This software is released under the GPL.
http://triptico.com/download/Artemus-4.1.2.tar.gz - [GPG signature]
or get the development version using git:
git clone http://git.triptico.com/artemus