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Thoughts, experiences and tools from the world of open source.

It is the year 2026. The IPv6 protocol has existed since 1998. It has been an RFC standard for over a quarter century. Every modern operating system supports it. Every modern network component can…

There is a number almost nobody knows, though it affects everyone: three. Three browser engines render nearly the entire World Wide Web. Blink, developed by Google. Gecko, developed by Mozilla.…

There are topics in IT that nobody speaks about. Not because they are taboo — but because they are inconvenient. Because they touch a privilege sacred to many managing directors: the assumption that…

The light on the robotic lawn mower blinks orange. Not because the battery is flat, not because a perimeter wire snapped. Because a server the owner has never laid eyes on was switched off somewhere…

There is a backstory few people remember anymore. In the eighties, the former Bundespost ran a service called Bildschirmtext — BTX. A closed system, proprietary pages, proprietary tariffs, proprietary…

The most revealing metric for local AI is not printed boldly on the box. It is called memory bandwidth, it is measured in gigabytes per second, and it decides whether a model runs smoothly on your…

There is a sentence that gets spoken more often than any other this decade, and it sounds like insight but is really capitulation: Well, in the end everything is transparent anyway. What it refers to…

I remember an evening, long before Git shaped my work. A configuration directory. Dozens of files, each with a suffix meant to reveal when it was last touched: sysctl.conf.bak, sysctl.conf.old,…

“Computers matter.” Say it today and you provoke scarcely any dissent — and scarcely any notice. Too self-evident, too obvious. Yet what we mean by it is no longer what one would first…

There is a moment everyone knows who has ever tried to keep using an older smartphone. The device works. The screen is intact, the battery holds, the hardware would be entirely sufficient for what you…

There is a moment every administrator knows, after enough years in the job. Friday evening. A server has to be rebuilt — yesterday. You remember most of the settings. The most important paths. The…