What SoC is this using? For the life of me I can't find it in the article? Edit: ok it's a CM4? on the back of the display... For others searching for the sec

What SoC is this using? For the life of me I can't find it in the article? Edit: ok it's a CM4? on the back of the display... For others searching for the secret sauce: BigTreeTech Pad 5