Platforms and tools

The events that made me create my homepage are explained in the history of this site.

Development tools

Most development tools that I use are from the GNU Tools suite. For graphical user interface programming these days I use the open source software Qt. In my Linux environment I use sagemath.

My typesetting system to create all sorts of papers, mathematical or others, including letters, is TeX. I use the TeXLive distribution on my GNU/Linux and Windows systems.


Linux penguin
The only working experience that I have with Linux are the distributions Slackware (1996-2000) and Debian (since 2001). When I started with Linux in 1996, slackware was a widely available distribution and for four years I managed to stay away from other ways of setting things up. Late in 2000 I was convinced of the convenience of debian by an expert.

My first Linux installation in October 1996 has been Slackware 3.0 with Linux Kernel 2.0.0 on the Aptiva Server sentinel (now defunct). It has since then been upgraded several times up to Slackware 3.4 with Kernel 2.0.30.

Between 1997 and 2000 several Slackware releases have been installed on various ThinkPads.

In 2001 I startet with Debian 2.2 (‘potato’) with Kernel Version 2.2.17, followed by Debian GNU/Linux 3.0 (‘woody’) with the 2.2.20 kernel in August 2002. I had to re-compile the tiny editor ‘tc’ of Tim Baldwin, as Tim’s precompiled one was linked to the previous version of the ncurses library. This editor is my favorite one. Through the years I kept making necessary upgrades to Debian GNU/Linux: Debian 3.1 ‘sarge’, Debian 4 ‘etch’, Debian 5 ‘lenny’, Debian 6 ‘squeeze’, Debian 7 ‘wheezy’, Debian 8 ‘jessie’and recently Debian 9 ‘stretch’.

Since October 2007 I had a Linux installation on my client machine amalfi, which a year later – after some disk swapping – became my Linux server inuksuk; it is now running under Debian GNU/Linux 9 with kernel-release 4.9.0-2-686-pae #1, kernel-version SMP Debian 4.9.18-1 (2017-03-30) i686 GNU/Linux. The Webserver is Apache 2.4.25, Web content management system is WordPress 4.7.4, database is MariaDB 10.1.22, PHP is at version 7.0.16-3 and my repository is git version 2.11.0.


As of November 2013 my Windows client on nunavut has an AMD Fusion A4-5300 APU with Radeon Graphics (Trinity) at 3.4 GHz, running under Windows 7 Home Premium and since 2015 under Windows 10.


For 15 years (1988-2003) I used OS/2 on some machine – more on OS/2 platform.