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Jan Wolter died on January 1, 2015, from complications of influenza.
• His obituary is here
• His online guestbook is here
• His Facebook page is here
• There are paint-by-number puzzles in memory
of Jan that can be found by going to
and searching for
puzzles with the number 162 in the title.
• There is a bench in memory of Jan, located in Gallup Park
in Ann Arbor, in the sandbox next to the canoe livery. Mark Conger
organized a group of people who planned it and put it there. Jan's
next of kin are happy that the bench gets a lot of use.
You can reach Valerie Mates, Jan's life-partner, by using this form
to send a message.
I work as a freelance software developer.
Mostly I do Unix systems programming,
complex integrated web systems, and communications systems.
Look me up if you need some high-quality Unix software development done.
My partner at UnixMama.com
does similar work.
Web Paint by Number is an on-line
puzzle community where people create and solve a type of Japanese logic puzzle
known as nonograms, griddlers, or paint by number puzzles. It's been very
successful both as a sophisticated programming project and
as a vibrant on-line community.
Politaire is a a solitaire card game site
that allows you to modify game rules extensively. It's written entirely in
done on the server side.
The Great Green Room
is a blog / essay site
where I publish non-technical articles on any topic that captures my interest,
including global warming, gay marriage, Thomas the Tank Engine,
religion, hot water heaters, and physics.
The Pro-Both site
promotes an approach to the abortion issue that is both
pro-choice and pro-life and epitomizes my tendancy to argue
both sides of any issue.
Open Source Software
is an Apache module for using external programs to do authentication.
I am the current maintainer of this, and the author of
the related pwauth program
for doing web authentication out of Unix shadow password files,
as well as mod_authz_unixgroup,
a module for doing access control based on unix group membership.
Pbnsolve is a high performance
AI program for solving paint-by-number puzzles. It was originally designed to
validate puzzles for my webpbn site.
Backtalk is a sophisticated
open-source web-based computer conferencing system developed by
Steve Weiss and I.
Backtalk is used on several systems. It's spinoffs include
Booktalk, a conferencing system for schools and libraries, and
Fronttalk, a command-line interface cloning Picospan.
Orville Write is a much enhanced freeware
version of the Unix write as used on Grex and M-Net.
Party is the fine old Unix chat program
used on Grex and M-Net.
Gate is a text-gatherer, sort of a light-weight
text editor typically used with Picospan, Yapp or Fronttalk
Cursive is a program I wrote in 1987 to generate
ASCII text banners in a rough cursive font.
There is lots of discussion of browser incompatibilities in mouse and key
event handling, and a smat