Privacy

Draft — effective when purchasing opens.

What this site stores, in one paragraph: your email address (that's the whole account), which lessons you've marked complete, and — if you buy something — a record of the purchase and its Stripe identifiers. Sign-in links and sessions are stored only as hashes.

What it deliberately doesn't store: passwords (there are none), card numbers (Stripe handles payment entirely), analytics profiles, or tracking cookies. There are two cookies: the session that keeps you signed in, and your light or dark choice, which mikezupper.com shares.

Third parties that touch your data: the email provider (to deliver sign-in links), Stripe (to process payments), and GitHub if you choose to sign in with it (we receive your verified email address).

Want your account and its data deleted? Email [email protected] from the account's address.