Tech Tales

Deleting nodes from my cluster is surprisingly simple.

I transferred a job that now does not run in Node-Red any more, but in Python.

I learned about PyEnv and want to write down the most important learnings.

I checked the TLS certificates used by my AVM Fritz products, and am surprised.

As it turns out, Python does not do commercial rounding. What is commercial rounding? For most digits, the direction of rounding is clear. There are some special cases though: Do I round $0.5$ to $0$ or to $1$? In commercial rounding, this “$0.5$” problem is solved by “rounding away from zero”, meaning: For positive numbers, round up; for negative numbers, round down. This makes perfect sense for a mathematician, but others might need examples, so here are some1: ...

I finally managed to setup a Footer Menu. This was not too complex, for some things one just has to find the time… But I did learn one CSS thing, namely justify-content: center. The remaining work was not too exciting.

How I am using Apache Kafka in Docker for simple development.

During the latest changes on my Blog, I also updated the version of PaperMod. I now discovered a bug that PaperMod introduced, and I wanted to fix it. The problem was: In the Post metadata line, I typically have a part telling “Translations: De”, as I write most post in both german and english. Now with this commit, this part was broken and the “De” part was moved to the next line. ...

I now can do post series!

How I removed personal identifiable information from my nginx log files.

I learned about negative timedeltas in Python’s datetime library and find it a bit counterintuitive.

How I am using acme.sh from one server to setup different TLS certificates all over my managed network.

How I have setup KaTeX on my Blog.

Disable the “You have no subscription!” popup when logging in to Proxmox VE UI

My impressions how well the “–minify” option of Hugo works.