RSS Parrot

LLM Driven Development

https://blog.koehntopp.info/2026/06/05/llm-driven-development/

Published: June 5, 2026 01:02

Codex ist die Shell von OpenAI zur Unterstützung von Softwareentwicklung mit Large Language Models. Es ist eine Anwendung, die auf dem Computer läuft, also dort Dateien verändern und Kommandos ausführen kann. Man kann Codex verwenden, um sich Software…

One year gas-free

https://blog.koehntopp.info/2026/05/08/one-year-gas-free/

Published: May 8, 2026 21:30

On 1 April 2025 we stopped heating the house with natural gas. The installation was described while it was still fresh in Going fully electric : two Panasonic multi-split air-air heat pump systems, seven indoor units, and a heat-pump boiler for warm water.…

Warte, Python macht... was?

https://blog.koehntopp.info/2026/03/25/warte-python-macht-was/

Published: March 25, 2026 04:05

In der Heise-Meldung zur Supply-Chain-Attacke auf LiteLLM ist die Rede von einem Credential-Stealer in LiteLLM. Der wird bei jedem Start von Python aktiviert, wenn LiteLLM installiert ist, auch dann, wenn das Paket nicht importiert wird oder benutzt wird.…

Modernizing the blog publishing workflow

https://blog.koehntopp.info/2026/03/25/modernizing-the-blog-publishing-workflow/

Published: March 25, 2026 03:04

I have been cleaning up the publishing workflow for this blog. The old setup still worked, but it was clearly from an earlier GitHub Actions era: one single deploy job, peaceiris/actions-hugo@v2 to install Hugo, and peaceiris/actions-gh-pages@v3 to push…

Solar und Batterie

https://blog.koehntopp.info/2026/03/09/solar-und-batterie/

Published: March 9, 2026 03:04

[basierend auf einer Reihe von Artikeln in Mastodon ] Solar mit Batterie – was kostet der Speicher? Kommerzielle große Solaranlagen werden heute oft mit angeschlossenem Batteriespeicher gebaut. Das liegt daran, dass der Energiebedarf abends,…

Debug Hugo

https://blog.koehntopp.info/2026/03/07/debug-hugo/

Published: March 7, 2026 04:05

Sometimes you want to debug Hugo templates, and yearn for a PHP var_dump() like facility. This is how to do it in Hugo: we define a partial debug-context.html, which we can call in templates, {{ partial "debug-context.html" . }}. The single dot in there…

Physics of Data Centers in Space

https://blog.koehntopp.info/2026/02/25/physics-of-data-centers-in-space/

Published: February 25, 2026 04:05

Did it ever occur to you why your computer has a fan, and why that fan usually stays quiet until the machine actually starts doing something? Compute means Heat When your laptop sits idle, very little is happening electrically. Modern…

KaTeX Test

https://blog.koehntopp.info/2026/02/08/katex-test/

Published: February 8, 2026 05:06

This is a KaTeX rendering test post. Inline math should render here: $E = mc^2$, $a^2 + b^2 = c^2$, and $\int_0^1 x^2 , dx = \frac{1}{3}$. Display math using $$...$$: $$ \sum_{k=1}^{n} k = \frac{n(n+1)}{2} $$ Display math using \[...\]: [ f(x) =…

Mermaid Test

https://blog.koehntopp.info/2026/02/08/mermaid-test/

Published: February 8, 2026 04:05

This is a Mermaid rendering test post. If Mermaid is wired correctly, both diagrams below should render as SVG diagrams. flowchart TD A[Write Markdown] --> B[Hugo Build] B --> C[Load mermaid.js] C --> D[Render Diagram] sequenceDiagram …

BOFHLE revisited

https://blog.koehntopp.info/2026/02/03/bofhle-revisited/

Published: February 3, 2026 05:06

After the BOFHLE article I wondered if the game can always be solved with the limit of 6 guesses. So I wrote some Python code to solve the game. We are using the same score_word() function as before, and then implement the guessing strategy we laid…