My name is Christian Köberl and I am a software engineer @ Porsche Informatik in Salzburg, Austria.https://derkoe.dev/en-ushttps://derkoe.dev/blog/2026-05-25-rh-hardened-images-and-jib/https://derkoe.dev/blog/2026-05-25-rh-hardened-images-and-jib/Red Hat has recently released Red Hat Hardened Images - a collection of container images that are minimal, distroless, and optimized for security. In this blog post, we will explore how to use these images in combination with Jib to build secure and optimized container images for Java applications.Mon, 25 May 2026 00:00:00 GMThttps://derkoe.dev/blog/2026-05-05-enterprise-vibe-coding/https://derkoe.dev/blog/2026-05-05-enterprise-vibe-coding/Vibe Coding is gaining traction, but how can it work in an enterprise context? This post explores two approaches—issue-based vibe coding and cloud dev-environments—to enable business people to create integrated, maintainable, and secure applications.Thu, 07 May 2026 00:00:00 GMThttps://derkoe.dev/blog/2025-04-22-ai-updates/https://derkoe.dev/blog/2025-04-22-ai-updates/Busy OpenAI weeks: GPT-4.1, o3 and o4-mini, OpenAI Codex CLI and rumors about OpenAI buying Windsurf. Google launches Gemini 2.5 Flash, and PocketFlow is a minimalistic framework for building AI agents.Tue, 22 Apr 2025 00:00:00 GMThttps://derkoe.dev/blog/2025-04-11-ai-updates/https://derkoe.dev/blog/2025-04-11-ai-updates/OpenAI's new image generation model, AI 2027 - a scenario of AI future, data protection in AI tools, and Meta's Llama 4 launch.Fri, 11 Apr 2025 00:00:00 GMThttps://derkoe.dev/blog/beating-c-with-java/https://derkoe.dev/blog/beating-c-with-java/Writing a faster word count (wc) in Java and learing about the GraalVM.Mon, 29 Jun 2020 00:00:00 GMThttps://derkoe.dev/blog/development-environment-in-wsl2/https://derkoe.dev/blog/development-environment-in-wsl2/This guide details setting up a WSL2 development environment with Ubuntu on Windows 10, including installation steps and addressing GUI app support challenges.Mon, 25 May 2020 00:00:00 GMT