Installing on a Watchguard T10 Firewall Device

I got a Watchguard T10 and I’m trying to install. I noticed that this device does not appear on the table of hardware, but it does have a firmware download page: https://firmware-selector.openwrt.org/?version=23.05.2&target=mpc85xx%2Fp1010&id=watchguard_firebox-t10

When I try to install the firmware, the existing Watchguard system is locked to only allow firmware updates with a paid license key “you need a Livesecurity Key to upgrade” (which I have no interest in getting). Anyone know of a bypass to this? Or any success flashing this device?