Cool, the biggest issue for me when I was trying to do the same thing (turn my beefy PC to a "gaming console") was the ability to turn it on with gamepad. I've spent a lot of time researching it and have not found a reliable solution.
As a workaround, with a USB remote controller[0] you can put a PC to sleep and wake it up by pressing the power button. That's what I did with my setup of a mac for game streaming[1]. In my experience, the sleep/wake functionality works on Windows and Linux as well, so it should work on this.
