Hi, I'm Christian

Tinkering around with software and hardware since 1988

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The night DNSSEC broke .de
Get shit done with Claude Code, Gemini and OpenAI Codex
When your address doesn't exist — a Telekom story
Why I chose Hugo over WordPress for this blog
Welcome, 2026! My past, present and future
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2026

When your address doesn't exist — a Telekom story February 17, 2026