package submission, unit test failures on Guix QA... policies?

[Andy Tai <atai@atai.org>]

Hi, I have a patch submission that builds fine (in the GNU Guix sense,
that is, unit tests run and pass) locally but fails on Guix QA due to
unit tests failing.

I suspect that the failures are due to the build machine (or machines)
as plain x86-64 PC (fine as build server(s)) does not have exotic
hardware units like GPU that the package in question is meant to use.

This may become more common as GPU and NPU applications become more popular.

Curious how shall such cases be handled?  Maybe reviewers can build
and run the patch to verify the patch works, so the Guix QA failure
can be overridden?