unfortunately hcitool is deprecated in latest BlueZ. i have no idea what is correct replacement in the latest version. at least for some use cases there seems to be tool called btmgmt, but at this point i cannot tell if that provides all the functionality needed by openhaystack firmware tag implementation.
HCI.pyuseshcitoolcommand: https://github.com/seemoo-lab/openhaystack/blob/main/Firmware/Linux_HCI/HCI.pyunfortunately
hcitoolis deprecated in latest BlueZ. i have no idea what is correct replacement in the latest version. at least for some use cases there seems to be tool calledbtmgmt, but at this point i cannot tell if that provides all the functionality needed by openhaystack firmware tag implementation.