Hi, I’m Franz đź‘‹

I write short, practical notes on privacy, self-hosting, security and DevOps. Expect reproducible steps and honest tradeoffs.

Centauro Rent a Car data breach (Dec 2025): what was exposed and what to do

Centauro Rent a Car data breach: what was exposed and what to do A few days ago I received an email from Centauro Rent a Car stating they discovered “partial unauthorized access” to certain customer data via a web service on December 18 (their wording). If you’re a customer, you may have received the same notice. What Centauro actually said In their notice, Centauro says they detected unauthorized access on December 18 and that it happened “through the web service.” They claim the incident was “immediately remedied” and that they “strengthened access control security” afterwards. ...

January 2, 2026 Â· 5 min Â· 927 words Â· Franz

How this blog is built (Hugo + PaperMod + GitLab Pages)

Why a static blog I wanted something fast, portable, and boring to maintain: plain markdown, predictable builds, no database, no plugin ecosystem. Stack Hugo (static site generator) PaperMod (theme found from the official list ) GitLab Pages (hosting + CI build) Porkbun (DNS) Repo layout content/ → posts and pages layouts/ → small overrides (e.g., link render hook) static/ → static assets (icons, images, etc.) Build & deploy (GitLab Pages) My site is built automatically on push. The important parts are: ...

December 22, 2025 Â· 2 min Â· 366 words Â· Franz

Helm Changelog

Helm Changelog: Create changelogs for Helm Charts, based on git history I develop my own Helm chart and I often forgot to update the changelog. This tools helps to solve this problem by automating the process of generating a changelog from the git history. I discovered it some time ago and I use it regularly. The original repository repo is not maintained anymore, but there are some forks more updated. I recommend to check the one from Traefik .

September 11, 2025 Â· 1 min Â· 79 words Â· Franz

Shellcheck

ShellCheck: a shell script static analysis tool. It gives warnings and suggestions for bash/sh shell scripts. I discovered it some time ago and I found it very useful to validate my shell scripts. You can learn more about it in the official repository .

September 5, 2025 Â· 1 min Â· 44 words Â· Franz