truenas/library/ix-dev/community/unifi-controller/app-readme.md

Unifi Controller

Unifi Controller is a network management controller for Unifi Equipment.

When application is installed, a container will be launched with root privileges. This is required in order to apply the correct permissions to the Unifi Controller directories. Afterward, the Unifi Controller container will run as a non-root user (999). All mounted storage(s) will be chowned only if the parent directory does not match the configured user.