RSS Parrot

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…

BOFHLE

https://blog.koehntopp.info/2026/01/14/bofhle.html

Published: January 14, 2026 05:06

BOFHLE is a game of wordle with Unix commands. That is, you get to guess a 5-letter Unix command in six tries or fewer. After each try you get a hint: black: the letter is not present in the secret command. yellow: the letter is present, but not in this…

pysembr

https://blog.koehntopp.info/2025/12/20/pysembr.html

Published: December 20, 2025 05:06

With the 2025.3 release, JetBrains retired the Gracie Pro Plugin, a tool that until recently provided, among other features, the option to apply structural wrapping to a file. For natural languages this feature automatically applied formatting rules…