Ehh, once you get to a certain point you wind up poking things under /sys and /proc that are a little different per-architecture, or building snippets of C code

Ehh, once you get to a certain point you wind up poking things under /sys and /proc that are a little different per-architecture, or building snippets of C code that make syscalls which behave differently per-architecture. Not to mention that ARM distros are usually a little different, either lagging behind or a little ahead of what exists for x86 - although it's better than it used to be, especially with ARM64.