UNRAID runs in RAM, so every time the system reboots, the .bash_profile is reset to the default, thus losing any customizations. To address this, UNRAID created a process that allows you to store customization on the boot drive allowing the .bash_profile to be rebuilt with every reboot.
The /boot/config/go file in Unraid is a startup script executed during the boot process. It is located in the /boot/config/ directory on the Unraid USB flash drive. This file is used to define custom commands or configurations that need to run when the system starts.