macOS Bluetooth instructions unclear

I am running on macOS (laptop, with bluetooth).
I followed https://google.github.io/bumble/platforms/macos.html and ran the command.

Then, I tried to transmit using
```sh
python apps/auracast.py transmit --input "device:0" hci
```
> bumble.transport.common.TransportSpecError: unknown transport scheme
```sh
python apps/auracast.py transmit --input "device:0" vhci
```
> FileNotFoundError: [Errno 2] No such file or directory: '/dev/vhci'
```sh
python apps/auracast.py transmit --input "device:0" hci-socket
```
> Exception: Bluetooth HCI sockets not supported on this platform

So I guess it is unclear to me what would be the next step to use the on-device bluetooth?