Debian XML/SGML Group
Collaborative XML/SGML packaging effort for Debian.
Alioth Project: https://alioth.debian.org/projects/debian-xml-sgml/
Version control systems available for team members:
Interacting with the team
Email contact: http://alioth.debian.org/mail/?group_id=30223
Request tracker: usually b.d.o
There are several bugs open. If you are interested, just send patches or maintain a package.