Privacy notice

How this website processes personal data when you visit or get in touch.

Last updated: 14 November 2026.

Controller

For privacy questions or requests concerning your rights: [email protected].

I operate this as a private, non-commercial website. It is technically provided through IT-Nerds GmbH’s Cloudflare account; I administer the website myself and remain responsible for it.

Website access and hosting

This static website is delivered through Cloudflare Pages. The hosting service processes connection and request data, including IP address, time, requested URL, browser and system information and any referrer sent by your browser. This enables delivery and protection against abuse. The legal basis is Article 6(1)(f) GDPR, with a legitimate interest in secure and reliable operation.

The recipient is the Cloudflare group, including Cloudflare, Inc. in the USA. Processing outside the EU/EEA is possible. Cloudflare describes its safeguards and EU Standard Contractual Clauses in its Data Processing Addendum. Retention of hosting and security data depends on the type of data, necessary service provision and legal obligations; Cloudflare explains these criteria in its privacy policy.

Appearance, language and local features

All website fonts, images and scripts are loaded from the relevant website domain. The website code does not embed advertising networks, analytics scripts, social widgets or external font services. External profiles are ordinary links: you visit those websites only when you follow a link.

After an explicit choice, your browser stores light/dark as mk-theme and animation on/off as mk-motion in local storage. These preferences remain until you clear site data and are not used for advertising recognition. Storage provides the function you explicitly selected (section 25(2)(2) TDDDG). The site remains usable if storage is blocked.

When navigating between pages or switching between German (.de) and English (.com), only the display value theme=light or theme=dark is added to the link. The destination applies it and removes it from the visible address. It may appear in hosting request data as part of the URL. The language switch does not forward authentication data or other URL parameters.

Browser preferences for reduced motion or data saving are handled locally. The demo terminal processes input only in your browser and does not run actual server commands. The copy button writes the contact address to the clipboard only after you click it; it does not read clipboard contents.

Email contact

When you write to [email protected], your sender address, message and communication metadata are processed to answer your enquiry. This is based on Article 6(1)(f) GDPR (the legitimate interest in responding to voluntary enquiries). Contact is voluntary; a reachable reply address is needed for a response.

The contact address delivers to my existing mailbox with Zoho Mail’s European service at zoho.eu. Zoho processes message and communication data to receive, store and send email. According to Zoho, data is stored in EU data centres; authorised support access from India is possible. Zoho describes the applicable Standard Contractual Clauses and safeguards in its privacy information.

Retention and deletion

I regularly review email enquiries. I delete completed enquiries once no further questions are expected and the data is no longer needed. Ongoing conversations and records needed to meet legal obligations or establish, exercise or defend legal claims are kept only for as long as their purpose requires. There is no fixed additional retention period.

According to Zoho’s deletion policy, deleted messages can remain in Trash for 5 to 180 days depending on message age and the cleanup setting, followed by another 30 days on its servers for recovery. This describes the provider’s rule, not an additional blanket period for handling my enquiries. My deletion rule does not promise immediate deletion of every provider copy.

Your rights

Subject to the statutory conditions, you may request access, rectification, erasure, restriction and data portability. Where processing relies on legitimate interests, you may object on grounds relating to your particular situation (Article 21 GDPR). Any consent you have given may be withdrawn for the future.

You may complain to a supervisory authority, particularly where you live or work or where an alleged infringement occurred. In Berlin: Berlin Commissioner for Data Protection and Freedom of Information. The website does not perform profiling or automated decisions with legal or similarly significant effects.