Follow this guide to set up the software, but by default you must select Smoothieware as the device: https://github.com/LightBurnSoftware/Documentation/blob/master/DeviceWizard.md
Alternatively, you can press “Find My Laser” and the device should show up.
Also, the origin of the machine in LightBurn setup step 6 is the FRONT LEFT. I know the endstops are in the back left. Homing Location and Origin are not the same thing. Origin is FRONT LEFT.