The creator of Nearby Glasses made the app after reading 404 Media's coverage of how people are using Meta's Ray-Bans smartglasses to film people without their knowledge or consent. “I consider it to be a tiny part of resistance against surveillance tech.”

https://www.404media.co/this-app-warns-you-if-someone-is-wearing-smart-glasses-nearby/

This App Warns You if Someone Is Wearing Smart Glasses Nearby

The creator of Nearby Glasses made the app after reading 404 Media's coverage of how people are using Meta's Ray-Bans smartglasses to film people without their knowledge or consent. “I consider it to be a tiny part of resistance against surveillance tech.”

404 Media

@404mediaco
This will probably work with BLE Radar too. Just need the Meta glasses Bluetooth hardware ID prefix.

Edit: Looks like maybe this uses a company identifier instead of the Bluetooth MAC. BLE radar lets you filter by company, but their list doesn't have Meta Platforms, Inc.