When installing via the package addon, this is the guide to follow: https://flightaware.com/adsb/piaware/install
It is missing a claim link.
When not using the piaware image and not installing piaware-web there will be no page to claim your receiver.
I think when i first started, i clicked around quite a bit finally finding this page https://flightaware.com/adsb/piaware/build
On this page there is the link mentioned to claim a new device.
So it would be very nice to add a “claim your receiver” section with the claim link (https://flightaware.com/adsb/piaware/claim) so no one else has to wander around wondering how to claim their receiver