Legal information · cookies
Cookies and technical storage
Effective from 19 September 2026
What we use and what we do not use
We do not use any third-party analytics, advertising or other tracking technologies. We do not use cookies for profiling or to measure traffic through external services.
We use only technical storage and one cookie that are necessary for the application to work or that remember your settings. For this reason, we do not display a consent banner — consent is not required for these storage technologies.
Overview
Sign-in session (browser storage) — keeps you signed in across windows and after closing the browser. It is deleted when you sign out.
Destination after sign-in (session storage) — remembers the destination page and is deleted after use.
Collaboration tab identifier (session storage) — randomly distinguishes open tabs so presence and concurrent-writing locks work. It contains no answer content or information about another person and expires when the tab closes.
Visit identifier (session storage) — enables measurement of the length of an account visit. It contains no visited content and expires when the tab closes.
Temporary workshop completion lock (session storage) — prevents the same workshop completion from starting concurrently in one tab. It is removed after completion or an error.
Language choice (browser storage) — remembers the selected language.
Sidebar state (`sidebar_state` cookie) — remembers whether the sidebar is expanded.
How to remove them
You can delete all of the storage technologies listed above at any time in your browser settings. If you delete the sign-in session, you will need to sign in again.
Relationship to personal data protection
How we handle personal data is described in the Personal Data Processing Policy.