Argon One Pi4 V2 - fan control

noob here , Im booting from ssd using HA OS but i didnt run the fan controller to the pie as per the instructions , can i reboot from the sd card and run the commands now ? im not sure how to get back to the pi homescreen

go easy ! and thanks in advance

You need a fan controller which supports Home Assistant OS. I fear, the official script does not. Maybe this is that you need: