Ubiquiti Cloud Key plugin

Hello, I read at other firewall feature(firewalla gold) that on the same hardware could be declared a zone that will be used as local Ubiquiti Controller. Can be implemented here too? I have an 250 GB SSD on IPFire machine that is empty most of the space.
Thank you!

reference (https://help.firewalla.com/hc/en-us/articles/360053441074-Guide-How-to-run-UniFi-Controller-on-the-Firewalla-Gold-Series-Boxes)

The approach used in that reference uses a docker installation. That is not possible on IPFire as there is no docker capability.