Say what you want it to do. Tap it onto a sticker. Done.
Creating a tag is an authenticated action — you sign in with your Toque account, no tokens to paste.
One-time setup: pick a handle for your account (lowercase letters, digits and dashes).
Web NFC writing is Android + Chromium only. iPhone and desktop browsers can't write NFC from a web page — use the QR (print or screenshot it), or Toque's native writer app. Raw NFC utilities (memory, lock/password, iPhone write) are native-only by platform design.