For convenience I have collected some hard to find papers and presentations.
I am an emeritus Debian GNU/Linux developer (was most active 1993-1999 but recently reactivated). I still do all my computer work and play on Debian GNU/Linux systems, including Ubuntu. These days, however, my hacking (private) development activities are focused on our MythTV installation.
In the past I was the original author of the Xy-pic diagram package for TeX (active 1991-1999, I even used to be quite active in TUG) and I created the FleXML program for generating super-efficient DTD-driven XML processors (1999-2000); recently my open source activities have been focused on my CRSX higher order rewriting engine.
Privately, I enjoy my family: Eva and Sofus.