Is it not needed at all? I never tested the power button on the V5 prior to installing the Argon One Control add-on but I was under the impression it was needed to allow the use of fan "curves" in relation to CPU and SSD/NVMe temps at the least. Does the ONE V5 fan turn on automatically based on some hardcoded temp value?
In any case its a lot of fun tinkering with the OLED screen to get it to display what I want it to:
First of all let me say, great work, I have the exact same case and it was a breeze to set up thanks to you.
May I be greedy and ask how you got the now playing and progress bar on your screenshots?