LifeOS
Sign in with your email.
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You'll receive an email with a sign-in link. Open it on this device. The link expires after ~1 hour.
If your email isn't on the allowlist you'll see "email is not on the allowlist" — ask the account owner to add it.
After signing in once, you'll be asked for the couple passphrase. The passphrase decrypts your data locally; the server only sees ciphertext.