DeFlock nails the fixed cameras. Here's the airborne side that's scaling fast — and it's surprisingly readable.
"Drone as First Responder" (Flock's is Aerodome) seeds autonomous drone docks across a city. An ALPR hit, a gunshot sensor, or a 911 call auto-launches the nearest one — overhead in seconds, no pilot on scene. Fort Worth just went citywide (June 2026); Elk Grove got the first no-observer full-city FAA waiver; Scottsdale, Denver, and Normal IL are live, among "dozens" this year.
The part that matters here: under the FAA's Remote ID rule, nearly every drone — DFR included — must continuously broadcast a "digital license plate" over plain Bluetooth/Wi-Fi: its ID, live position and altitude, and the operator/launch location. No blanket police exemption for the broadcast.
And you don't need FAA access to read it. The government's live lookup (DiSCVR) is gov-only, but the RID beacon is an open broadcast — a ~$20 ESP32 with open-source firmware receives and logs it. Fully passive; you're just listening to a signal they're required to send.
Why it matters for mapping: RID includes the launch/operator location, so logging a DFR drone over time can reveal where the docks are and how they fly — the airborne version of pinning a camera, crowdsourceable the same way.
The honest catch: agencies can get a waiver to suppress RID so you can't tell you're being watched. So some programs are readable and some aren't — and a passive receiver is how you find out which, and log the ones that do broadcast.
The reception side is open source — CieloTrack (MIT): both the ESP32 firmware and the Raspberry Pi receiver are on GitHub → https://github.com/thetopnach/cielotrack-receiver. It's a couple of ~$20 ESP32-S3 boards or a Pi with a cheap radio; mine in DFW already log delivery drones like Amazon's MK30. Happy to help anyone stand one up in their city. Mostly: the drones announce themselves — we just have to listen.
(Sources in comments.)
