The problem with <abbr> …

This is an essay on the proper markup for abbreviations and acronyms in HTML. If was first published as a series of posts on Yammer, but since we will discontinue the use of that tool, I thought I rather save it over here (it’s probably more accessible here anyways). A word of warning: this is […]


If you don’t know what XSLT is and how to use it, go away. This here is not for you.

A First Look at Swift: The Good, the Bad and the Ugly

This is a first look at Swift, Apple’s new programming language for MacOS and iOS development, which is still in Beta and thus by the time you are reading this, some of the bugs or features discussed here may have changed. Also, while I have worked with a couple of programming languages over the years, […]

Pocket Calculator

Here’s another weekend-project. Actually it’s more an “interface study”, but a fully functional calculator app. It is all based around the thought: why does the “Calculator” app on my computer still look like a hardware pocket calculator from the 1950’s? Why doesn’t it render the formula like a proper formula editor? Why can’t I enter […]

Unicode Character Map

Here’s another project I’m working on: The Unicode Character Map – a small but (hopefully) useful tool to view all available Unicode characters.

Portal Turret Project

My (then 6-year-old) daughter and me were pretty impressed by this build of a Portal Turret, and since she is quite a big Portal fan, this thing went straight up to the top of her birthday wish-list.

Local Environment Chat (LEChat)

Time to mention a little project I’m working on since a while: A simple chat interface that will run inside your web browser (read: made in JavaScript) in combination with a server that can run under OpenWRT, which in turn means it can run on your old router at home. Yes, no dedicated server needed.

New Code Portal

I used the opportunity that I had to do some redesigning anyway to start to consolidate my software to a new portal: The Kolmio Code Repository. The first thing you find there is a JavaScript class to create (pseudo-) modal dialogs called js.Dialog. Have a look!

XML Cheat Sheets

Als Prüfungsvorbereitung für das Seminar “XML-Technologien”, habe ich wieder mal angefangen, ein paar Cheat Sheets zu machen. Vielleicht findet der ein oder andere das auch hilfreich, ich stelle sie jedenfalls mal hier online…