Show HN: Who is running a Covid-19 contact tracing app near me?

Hi, author here, feel free to ask any questions about the page or the contact tracing protocol it is working with!

This proof of concept will show you, using Web Bluetooth, if there are any devices near you broadcasting a contact tracing identifier conforming to the Apple/Google specification. It works on Chrome only so far, and you need to enable a flag since the Bluetooth scanning API is considered experimental.

This will detect beacons emitted by, among others, the German and Swiss contact tracing apps, with several other parties having signalled their intention to switch to it in the future.