Privacy Policy
Last updated: June 2026. This policy describes how Techalchemy processes personal data when you visit lucarne.techalchemy.fr or use Lucarne Studio.
Data controller
Techalchemy (Sole proprietorship)31 Avenue du clos banderet, 74200 Thonon-les-Bains, France
SIRET 97746385000015
Contact: contact@techalchemy.fr
Publication director: ZORLONI Maxime
Hosting
Data processed by the site is hosted in France by PulseHeberg SAS, 9 Boulevard de Strasbourg, 83000 Toulon, France.
Data we process and purposes
| Category | Purpose | Legal basis |
|---|---|---|
| Language, theme, Studio preferences, selected editor version | Display the site and Studio according to your choices | Legitimate interest (GDPR Art. 6(1)(f)) |
| Studio projects (.lucarne.json) stored locally | Save your work in the browser | Under your control; not sent to our servers by default |
| IP address and web server technical logs | Security, availability, abuse prevention | Legitimate interest (GDPR Art. 6(1)(f)) |
| Email address and message content when you contact us | Respond to your request | Legitimate interest or pre-contractual steps |
Documentation and most Studio tools process your content locally in the browser. We do not receive your project content unless you voluntarily send it to us (email, issue, etc.).
Retention
Server logs are kept for a limited period proportionate to security needs. Email correspondence is retained as long as necessary to handle your request. Data stored locally in your browser remains under your control until you delete it.
Recipients
Data is processed by Techalchemy and PulseHeberg SAS as hosting provider. We do not sell or rent your personal data.
International transfers
Site-related data is hosted in the European Union. GitHub (public code repository) may process data under its own terms if you interact with the repository.
Your rights
Under the GDPR you have rights of access, rectification, erasure, restriction, objection and portability where applicable. Contact: contact@techalchemy.fr. We respond within one month.
You may lodge a complaint with the CNIL (www.cnil.fr) or your local supervisory authority.
Changes
We may update this policy. The date at the top indicates the latest version.