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Nicolas Fränkel is a technologist focusing on cloud-native technologies, DevOps, CI/CD pipelines, and system observability. His focus revolves around creating technical content, delivering talks, and engaging with developer communities to promote the adoption of modern software practices. With a strong background in software, he has worked extensively with the JVM, applying his expertise across various industries. In addition to his technical work, he is the author of several books and regularly shares insights through his blog and open-source contributions.
- AI-assisted genealogy, a follow-up (2026-09-20)
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I got a lot of feedback on my post AI-assisted genealogy, some good, some not so good. In any case, I felt the subject was interesting to a lot of people. Meanwhile, I continue working on my tree, and I have deepened my understanding of the subject. In this post, I want to share again. Trust, but verify Let’s address the not-so-good feedback first. The gist of it was: AI can hallucinate. It’s true in theory: when you ask a question, it provides any answer.[…]
- World geography gotchas (2026-09-13)
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Years ago, a colleague of mine told me about two pockets of foreign land surrounded by Switzerland: Campione d’Italia and Büsingen am Hochrhein, respectively Italy and Germany. Both are enclaves of their respective country in Swiss territory: An enclave is a part of the territory of a state that is enclosed within the territory of another state. To distinguish the parts of a state entirely enclosed in a single other state, they are called true enclaves.[…]
- Build an AI Agent (From Scratch) (2026-09-06)
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Facts 10 chapters$29.29 (at the time of this writing)315 pages Chapters Building your first LLM agentWhat is an AI agent?[…]
- Coding assistants: a journey from a convert @ JavaCro
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For a long time, I was advert to coding assistants. I didn’t see any benefit: it was faster for me to write code, than to let them generate crap, and fix it afterwards. Then, around summer 2025, something changed. At home, I used Claude Code for better and better results. At work, GitHub Copilot was not as good, but it was still producing acceptable results. I’m now at a point where I can’t imagine not having coding assistants. I’m hooked. I have "vibe-coded" (I hate the term) a few personal projects: a Kotlin multi-platform project to cross-post content across multiple social media sites, a Python project for an artsy project, and a command-line to report content on Twitter. By the time I actually do the talk, the list will probably be even longer. In this session, I’d like to share how I use coding assistants. Since the landscape is changing all the time, I hope this session will be interactive and that you’ll share as well.
- Coding assistants: a journey from a convert @ Porto Tech Hub
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For a long time, I was advert to coding assistants. I didn’t see any benefit: it was faster for me to write code, than to let them generate crap, and fix it afterwards. Then, around summer 2025, something changed. At home, I used Claude Code for better and better results. At work, GitHub Copilot was not as good, but it was still producing acceptable results. I’m now at a point where I can’t imagine not having coding assistants. I’m hooked. I have "vibe-coded" (I hate the term) a few personal projects: a Kotlin multi-platform project to cross-post content across multiple social media sites, a Python project for an artsy project, and a command-line to report content on Twitter. By the time I actually do the talk, the list will probably be even longer. In this session, I’d like to share how I use coding assistants. Since the landscape is changing all the time, I hope this session will be interactive and that you’ll share as well.
