Reolink camera
Set up a new Reolink camera without the Reolink app and show it in Apple Home: the helper gives it a password and your Wi-Fi, then shows its live video and pictures as a camera in Home.
Only for a camera fresh from the box, or one reset with its reset button. A camera that already has a password is left alone. Doing it again on a camera this set up only gives it the Wi-Fi again.
Setup details stay in the helper's temporary memory. A Wi-Fi code contains your password and is shown only during this setup.