Privacy policy
Last updated: June 2026
Controller
The data controller is Andrzej Kubacki (contact via akubacki.org or LinkedIn).
Purpose
We process your email address solely to operate the waitlist for the book launch and send related updates (double opt-in).
Legal basis
Consent (GDPR Art. 6(1)(a)), given when you join the waitlist.
Retention
Until you withdraw consent or the waitlist project ends — then we delete your data unless law requires longer retention.
Your rights
You may request access, rectification, erasure, restriction, portability, withdraw consent, and lodge a complaint with your supervisory authority.
Hosting and security
Data is stored in Google Cloud Firestore (europe-west1). Emails are sent via Mailgun. The form is protected with Cloudflare Turnstile verification.