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Privacy Policy

Last updated: 22 October 2026

Who I am

nefling.dev is the business of Mateusz Reglinski, who builds automations and AI assistants for small businesses. I am the data controller for the personal data described on this page. You can reach me at [email protected] with any privacy question or request.

What data I collect

  • Contact form. When you send a message through the contact form, I receive the name, email address and message you provide, and your phone number if you add one. The message is delivered to my inbox by Resend, an email delivery service, and is not stored in a database on this site.
  • Analytics. If you accept analytics cookies, this site uses Google Analytics to understand how visitors use it (pages viewed, approximate location, device type). If you decline, analytics cookies are not set. You can change your choice at any time using the Cookie Settings link in the footer.
  • Rubin chat assistant. If you use the chat widget, the messages you type go to my server, where Rubin runs. The replies are written by an OpenAI language model, so the conversation is passed to OpenAI. Please do not share sensitive personal information in the chat.
  • Server logs. Like most websites, the server that hosts this site keeps short-lived technical logs (IP address, requested page, timestamp) for security and troubleshooting.

Why I process it

I use contact form data to reply to your enquiry: these are steps before entering a contract and my legitimate interest (Art. 6(1)(b) and (f) GDPR). Analytics runs only with your consent (Art. 6(1)(a) GDPR), which you can withdraw at any time. Server logs, basic anti-spam measures and the Rubin chat rest on my legitimate interest in keeping the site secure and functional and in answering questions (Art. 6(1)(f) GDPR).

Third-party services

  • Resend delivers contact form emails on my behalf.
  • Google Analytics provides visitor statistics, only after you accept cookies.
  • OpenAI writes the Rubin assistant's replies based on the messages typed in the chat.
  • Hosting. The site runs on infrastructure I manage, located in the EU.

I do not sell personal data or use it for advertising.

Transfers outside the EEA

Google, Resend and OpenAI may process data in the USA. I rely on the European Commission's decision on the EU-US Data Privacy Framework and on the Commission's standard contractual clauses.

Cookies

The only optional cookies on this site are Google Analytics cookies, controlled by the consent banner. Your consent choice itself is stored in your browser's local storage so I do not have to ask on every visit. Declining cookies does not limit any feature of the site.

How long I keep data

Contact enquiries stay in my email inbox for as long as needed to handle the enquiry and any follow-up work. Analytics data is retained according to Google Analytics' standard retention settings. Server logs rotate automatically after a short period.

Your rights

Under the GDPR you can ask me to access, correct, delete, or export the personal data I hold about you, object to or restrict processing, and withdraw consent at any time. Email [email protected] and I will respond within one month. You also have the right to complain to the President of the Personal Data Protection Office (UODO) in Poland or your local supervisory authority.

Changes to this policy

If I change how this site handles personal data, I will update this page and the date at the top. Questions are always welcome via the contact page.