Documentation

LifeLink — User Manual

Welcome to LifeLink. This manual explains how to use the app day-to-day: signing in, managing profiles, working with tags and recovering access.

1. Signing in

1. Open https://app.example.com in a modern browser.
2. Click 'Sign in' in the top-right corner.
3. Enter your email and password, or use a social provider if enabled.
4. New user? Click 'Create account' and follow the confirmation link sent to your email.

2. Recovering your account

If you forget your password:

1. On the sign-in screen, click 'Forgot password'.
2. Enter the email address associated with your account.
3. Check your inbox for a one-time code (OTP). It expires in 10 minutes.
4. Enter the code and choose a new password.

3. Creating a profile

1. From the dashboard, click 'New profile'.
2. Enter a display name and choose a slug (this becomes the public URL: /p/your-slug).
3. Add contact details, emergency info, medical notes and anything else relevant.
4. Toggle 'Public' on to make the profile viewable, or keep it private and add a passcode.
5. Save. The profile is immediately live at its slug.

Available profile types

Each type comes with a purpose-built field set. Pick the one that matches how the tag will be used:

• Medical / ICE — personal medical + emergency info for first responders.
• Pet — dog, cat or any animal; tag on the collar for safe return.
• Vehicle disc — windshield or keyring disc for cars, motorcycles, boats.
• Luggage / bag — suitcases, laptop bags, backpacks.
• Equipment / asset — laptops, cameras, tools, instruments (company or personal).
• Bike / scooter — frame tag for bicycles and e-scooters.
• Kid wristband — theme parks, events, school trips.
• Elder / memory care — for loved ones with dementia or memory loss.
• Digital business card — tap-to-share contact details.
• Property / keys — keyring tag for keys, remotes, garage openers.
• Travel profile — trips abroad: embassy, hotel, insurance.
• Family profile — one tag for the whole household.

4. Working with tags

Tags link a physical NFC chip or QR sticker to a profile.

1. Open a profile → 'Tags' tab → 'New tag'.
2. Give the tag a label (e.g. 'wristband', 'wallet card').
3. The app generates a unique URL. Copy it, or use the NFC writer to program a chip.
4. Optionally set a passcode. Anyone scanning the tag will be asked for the passcode before the profile shows.
5. You can recover a tag's passcode at any time — see section 5.

5. Recovering a tag secret

Passcodes are stored encrypted at rest. As the tag owner you can recover the value:

1. Open the profile → 'Tags' tab.
2. Find the tag and click 'Reveal passcode'.
3. Confirm your account password when prompted.
4. The passcode is decrypted server-side and shown once. Copy it before closing the dialog.

6. Scanning a tag

1. Tap the NFC chip on your phone, or open the QR link.
2. If a passcode is set, enter it when prompted.
3. The profile loads with all the info the owner has shared.

7. Admin tools (admins only)

• Stats — profile count, total views, top profiles.
• Users — grant or revoke admin roles.
• Profiles — search, view or delete any profile.
• Activity — recent tag scans across the platform.
• Site brand — change logo, colors and site name without redeploying.
• Deploy — download a white-label bundle for spinning up another instance.
• NFC — bulk-program tags from a browser with WebNFC support (Android + Chrome).

8. Privacy & security

• Profile data is only visible to people you share the URL with (or the public, if you toggle it).
• Passcodes are encrypted with per-instance keys and never logged.
• Sign-in sessions expire after inactivity — sign in again if prompted.
• Delete a profile at any time from its settings; deletion is permanent.

9. Getting help

Email support@example.com for support. Include your account email and a description of the problem — screenshots help.