Make the Companion App also a Bluetooth Proxy

[rrooggiieerr]

If the Companion App would also provide a Bluetooth Proxy then:

Bluetooth Devices that are out of reach of your HA could still forward data, think of your sports watch or car that could send statistics to HA while going for a run or being on the road.

Devices that implement the Improv Wi-Fi standard via BLE could be automatically detected by HA even if HA doesn't have a Bluetooth adapter.

You could keep track of the location of a BLE Beacon by taking the phone location while the Beacon is in reach of the phone. Put a beacon on your bike and find it back later.

This guy has already implemented a stand alone app for it that emulates ESPHome, but if it would be part of the Companion App that would be even neater: https://github.com/Zen3515/homeassistant-mobile-ble-proxy