reproduce (this is a W=1 build):
        # https://github.com/zen-kernel/zen-kernel/commit/6912e177e46c2a6e0650395cf13039bfcfc1af86
        git remote add zen https://github.com/zen-kernel/zen-kernel
        git fetch --no-tags zen 6.12/zen-sauce
        git checkout 6912e177e46c2a6e0650395cf13039bfcfc1af86
        # 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 block/