As a sort of side projects that has not been part of my normal day to day duties an IT professional, there are a few things that I like to mention for the record.
When AppGate was first resurrected from the default we where
not that many people. But there was a need for a CRM
system. We actually had a license for a CRM system called
Goaldmine. But even though this software was now free
for us to use license wise, it was a behemoth both to install,
maintain and learn how to use. I decided we need something
much simpler and I started to write a simple CRM system based
on PHP and mysql. It kept track of leads, customer contacts,
mailing lists, licenses, etc, and could produce a number reports.
In 1999 I was a cowriter on a book about security architectures.
The book has apparently sold quite well over the years and there
has been several prints. The rumor is that there will be a
new updated edition as well.