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Cookies and Local Storage

Effective November 7, 2026 · Last updated November 7, 2026 · All legal documents

We do not use tracking or advertising cookies.

The short version

  • We do not use advertising cookies, tracking cookies or analytics.
  • Your browser's local storage keeps your settings and progress on your device. We cannot see it.
  • Fonts and the 3D code library are stored on our own site, so no outside service receives your IP address when they load.
  • If we ever add a cookie that is not strictly necessary, we will ask first.

This summary helps you read the full text; the full text controls.

Contents
  1. Local storage on your device
  2. Outside services that load with the pages
  3. When accounts and payments open
  4. Privacy signals
  5. If this changes

1. Local storage on your device

Your browser stores your settings (“Make it mine”), language choice and course progress in local storage so they are there next time. This information stays on your device; we cannot see it. You can clear it any time in your browser's settings (site data). Clearing it removes progress that you have not saved as a code.

2. Outside services that load with the pages

Typefaces and the 3D library (three.js) are stored on our own website, so loading them does not contact Google or Cloudflare.Google, Cloudflare.

3. When accounts and payments open

ItemTypePurpose
Sign-in session (Supabase)Strictly necessaryKeeps you signed in securely
Bot check (Cloudflare Turnstile)Strictly necessaryStops automated abuse of forms
Checkout (Stripe)Strictly necessary, on Stripe's pagesPayment security and fraud prevention

We will list each item here before it starts.

4. Privacy signals

We do not sell or share personal information, so a Global Privacy Control (GPC) signal is already honored. We do not track you across sites, so Do Not Track makes no difference here.

5. If this changes

If we ever add a cookie or similar technology that is not strictly necessary, we will ask for consent first (and parental consent for children where required) and update this page.

Questions about this document: use the Contact page; we answer in writing. We post every change on this page with a new date.