Privacy Policy
Last updated: April 2, 2026
This privacy policy describes how the website koscian.busek.pl (hereinafter: the "Service") processes user data.
Data Controller
Dariusz Kuśnierek Dariusz Kuśnierek (dkodr) Tax ID (NIP): 6981624570 Osiedle Piastowskie 15/4, 64-000 Kościan, Poland Email: kontakt@busek.pl
What data we process
The Service is an informational bus schedule application and does not require registration or login. We only process:
- •IP address — processed by the server with each HTTP request and by the analytics system (Umami).
- •Browser localStorage data — color theme (light/dark) and departure widget preferences (selected stop and lines). This data is not sent to the server.
- •Geolocation — only upon user request (clicking "My location"). Position data is not stored or sent to our server.
Purposes of processing
- •Analytics — anonymous visit statistics (number of visits, popular pages) to improve the Service.
- •Functionality — remembering user preferences (theme, stop) for convenience.
- •Geolocation — displaying the user's position on the map and finding the nearest stop.
Legal basis
Data processing is based on Art. 6(1)(f) GDPR (legitimate interest of the controller) for analytics and Service functionality. Geolocation is activated only with user consent (Art. 6(1)(a) GDPR), expressed through browser permission.
Data retention
- •localStorage data — retained until manually deleted by the user or browser data is cleared.
- •Analytics data (Umami) — stored on the controller's self-hosted server. Umami does not associate data with specific users.
- •Server logs — retained for up to 30 days, then automatically deleted.
Your rights
Under GDPR, you have the following rights:
- •Right of access to your data (Art. 15)
- •Right to rectification (Art. 16)
- •Right to erasure (Art. 17)
- •Right to restriction of processing (Art. 18)
- •Right to data portability (Art. 20)
- •Right to object to processing (Art. 21)
To exercise your rights, contact the data controller by email. You also have the right to lodge a complaint with the President of the Personal Data Protection Office (uodo.gov.pl).
Data stored on your device
The Service does not use cookies. It uses the browser's localStorage mechanism as follows:
| Name | Purpose | Retention | Type |
|---|---|---|---|
| theme | Remember selected theme (light/dark) | Until deleted by user | Necessary |
| kkp-departure-prefs | Remember selected stop and lines in the departure widget | Until deleted by user | Necessary |
External services
The Service uses the following external services:
- •Umami Analytics — a self-hosted analytics system on the controller's server. It does not use cookies, does not track users across websites, and does not share data with third parties.
- •OpenStreetMap — map tiles provided by the OpenStreetMap Foundation (openstreetmap.org). OSM servers may log IP addresses of users viewing the map.
- •Photon (Komoot) — geocoding service used for address search. Search queries are sent to photon.komoot.io.
- •OSRM — walking route service (router.project-osrm.org). Only start and destination coordinates are transmitted.
Contact
For privacy and data protection matters, please contact: kontakt@busek.pl.
Policy changes
The controller reserves the right to change this privacy policy. The current version is always available at koscian.busek.pl/en/polityka-prywatnosci.