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, […]

A Raspberry Pi File and Print Server

I was recently looking into the options to buy a living room “home server” to centralize certain services like file and print server, media server, etc. It didn’t take me long to realize that for less money I could get a whole legion of small microcomputers that do the same work better and more securely; […]

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…

RegEx Cheat Sheet

Nachdem ich viel gutes (und z.T. auch kritisches) Feedback zum Java Cheat Sheet bekommen habe, hier noch einmal etwas ähnliches: das RegEx Cheat Sheet. Wie gewohnt ist das alles so kurz und knapp wie möglich beschrieben. Wer noch keine Ahnung von RegEx-Mustern hat, sollte sich wohl besser erst mal woanders schlau machen, aber wer eine […]