• Born: 1970
• Sex/Gender: male / 😄 Pronouns: he/him
• Nationality: German
• Location: Germany/Bremen
• Languages spoken: German, English
• 📫 How to reach me: [email protected]

• Calendrical calculations
• Homeautomation
• Internet of things (IoT)
• Virtual Reality
• Artifical Inteligence
• Raspberry Pi
• Arduino
• ESP32

• Xing
• Stackoverflow
• WWW
• Mastodon @[email protected]

• Programming languages: Basic, Assembler, Comal, Forth, Pascal, Logo, Modula II, Miranda, ASpecT, C, C++, Java, AspectJ, ...
• Frameworks: Spring
• Script languages: Tcl, JavaScript, PHP, Rexx, bash
• Markup languages: SGML, HTML 2.0, 3.2, 4.0, XHTML, XML, WML, CSS, Microformats
• Regular expressions: sed, awk, grep, Perl
• Databases "ANSI-SQL", MySQL, MariaDB, Sybase, PostgreSQL, SAP-DB/MaxDB, Oracle
• Servers: Apache http, Apache tomcat
• Version control systems: CVS, Subversion, git
• QA: Coding rules
• Security
• Usability
• Engineering

• Rust
• Kotlin

• "Rauchzeichen V2.0; Website-Redesign mit Open-Source-Technik", iX 11/03 Seite 128ff, Heise Zeitschriften Verlag GmbH & Co. KG
• Report "E-Government without active content", Dr. Christian Böttger, Kai Hofmann, Philipp Kamps, et al., 11.08.2005, 53 pages + website

Here are some of my programs I have written in the times of the good old C64's (1984-1990):

• A very powerful message-writer system
• A Turbo-Tape backup system for disks
• A Turbo-Tape based tape contents system
• A low-resolution window system with support for RAM-Expansions
• An address database based on my window system (with autodial function)
• An video database based on my window system
• Very fast Printerdriver for GEOS and MPS802 (with Graphic-ROM)
• Software for the Video-1000 video digitizer
• Software to decode the DCF77 signal for the Conrad-Electronic receiver

And here you find some programs I have written for the Amiga (all submitted via Aminet):

• Kalender V2.3
• Port of SGMLS by James Clark
• ASpecT Port and debugging of the functional programming language ASpecT by Jörn von Holten
• Toolbox Port and optimization of the Karlsruher Compiler Construction Toolbox by Josef Grosch
• Installer tools
• PLog - an utility that can log modem connections using the PhoneLog file standard
• Magic User Interface custom classes
• Reusable basic library stuff for Magic User Interface custom classes
• Universal installer script for Magic User Interface custom classes
• Universal installer script for Amiga libraries
• CheckHTML based on the SGMLS port

OpenSource Projects to whom I contributed something in the past:

• ROBODoc is a documentation tool. It extracts the documentation from your source code and formats it in HTML, RTF, TeX, XML DocBook (PDF), or ASCII. Works with C, C++, Perl, Scripts, Tcl, FORTRAN, and any other language that supports remarks.
• pb.WebMAUI - The Web-Mail Administration User Interface aims at building a web-based administration tool for managing: complex maildomains mail user accounts server based filtering incl. "out-of-office mail replies".
• jShopz is a Java based online shop system. It's Java coded strong architecture makes it first choice for projects where high cutomizability and performance are important. Database connection via JDBC.
• phpGroupWare
• Business groupware - Business groupware (bgroupware) is a spin-off of the well known phpgroupware. This has been done for architecural and other reasons to keep imporvements alive that have been done by some professional ex-developers from a known company.
• OpenOffice.org

• DateLib porting to cmake

• Everything

• Code Is for Humans; A Guide to Human-Centric Software Engineering; Zohar Jackson; 2023