Create a file named leds.json, with this content (replace MAC addresses with yours).
You can find theses MAC addresses with something like bettercap.
[
{
"mac": "XX:XX:XX:XX:XX:XX",
"uuid": "fff0",
"address": "0000fff3-0000-1000-8000-00805f9b34fb"
},
{
"mac": "XX:XX:XX:XX:XX:XX",
"uuid": "fff0",
"address": "0000fff3-0000-1000-8000-00805f9b34fb"
}
]