How do you run Box64 on Asahi?

One thing I’ve noticed is how much of a PITA emulation of x86 is on Linux, esp on a 64-bit only platform like Apple Silicon. Well I am not here hoping for 32-bit to work anytime soon, but rather 64-bit emulation. I just want to be able to run some proprietary Linux programs, and the problem is that many of them are only compiled for x86_64, duh.

The problem is there isn’t a lot of documentation to setup Box64 outside of Debian, which natively supports adding arches via dpkg. Obviously RPM doesn’t have it like that, so how do you add arches to RPM?