Privacy Policy

1. Controller

Patrick Hess, Frohschammerstr. 6, 80807 Munich, Germany. See the legal notice for contact details.

2. Analytics with Umami

We use the open-source web analytics tool Umami, run on our own server (stats.com2u.selfhost.eu). No data is passed on to third parties such as Google.

Umami sets no cookies and does not build profiles of individual visitors. Aggregated usage data is collected, such as pages viewed, referrer, browser, operating system, device type and approximate origin (country). There is no cross-site tracking.

The legal basis is Art. 6(1)(f) GDPR (legitimate interest in improving our offering). You can object at any time by enabling “Do Not Track”, blocking the script or contacting us.

3. Hosting and server log files

When you visit this site, the web server processes technically necessary data (including IP address, date and time, requested URL, browser type) to deliver the page and keep it secure (Art. 6(1)(f) GDPR). Log files are kept only as long as necessary.

4. Login and browser storage

After logging in, a technically necessary session cookie is set. The site also stores your preferences (language, light/dark, selected depot) locally in your browser. This data does not leave your device and is used only to operate the site.

5. External content

On the technology pages the MathJax library is loaded via the jsDelivr content delivery network, which transmits your IP address to the CDN operator (Art. 6(1)(f) GDPR). Links to other websites (e.g. our reference projects) are subject to those sites’ own privacy policies.

6. Contact

If you contact us by e-mail, we process your details to handle your request (Art. 6(1)(b) or (f) GDPR).

7. Your rights

You have the right to access, rectification, erasure, restriction of processing, data portability and objection, and the right to lodge a complaint with a supervisory authority (in Bavaria: Bayerisches Landesamt für Datenschutzaufsicht).