5.15.44-Re4son-v7+ armv7l
bettercap v2.32.0 (built for linux arm with go1.19.2)
bettercap -debug
set ble.device 1; ble.recon on
_ finds two devices, but defaults to hci0
_ does same regardless of the manual setting, as if 1) the value isn't actually being used or 2.) it isn't actually changing
_ even though 'get ble.device' & 'active' reflect the change.

Changing the "-1" at line 10 in
"${ROOT}/modules/ble/ble_options_linux.go"
_ to be the ${wanted} interface index "works"...
_ although the "ble.device" setting still doesn't seem to be used except for display purposes, while the setting in
_ ble_options_linux.go seems to be used explicitly.