reproduce (this is a W=1 build):
        git checkout 121c335b36e02d6aefb72501186e060474fdf33c
        b4 shazam https://lore.kernel.org/r/20250423110948.1103030-21-ardb+git@google.com
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=x86_64 olddefconfig
        make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash