Get an empty package when pack nogil

I am a beginner at Conda, I want to pack nogil for Conda.

It can build successfully, but only outputs an empty file python-3.9.10-h9bef630_1.tar.bz2. I could find compiled nogil at testenv/conda-bld/nogil_1705822064554/work_moved_python-3.9.10-h9bef630_1_linux-64/, but they didn’t be copied into python-3.9.10-h9bef630_1.tar.bz2.

There are config files: nogil-conda/conda at nogil · ovo-Tim/nogil-conda · GitHub