guide
Sign-in & sessions
Let people sign in to your app with a code sent to their email. Gemmein stores no passwords, so a breach has no password database to leak.
This section covers the people of your app signing in. Your own Gemmein account can also add an authenticator app: see Secure your account.
In this section
Sign-in and sessions
The sign-in calls, where the code comes from, rate limits, sessions, sign-out and your own server.
Devices and IP addresses
The devices a person is signed in on, and the IP addresses Gemmein records.
What happens if…
Sign-in cases: what Gemmein does and what you do.
Account deletion
A person deletes their account: what goes, what stays and what you do.
Data export
A person downloads everything Gemmein holds about them.
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