Comment by scheeseman486

https://lists.archlinux.org/archives/list/arch-dev-public@li...

They're being a little vague about it but this collaboration to improve Arch's build service/infrastructure is being done in part to faciliate support of multiple architectures.

iirc it was in Tested coverage that Valve said the hardware supports other OSes. It'd be out of character for Valve not to allow for this.