When run `pip-compile requirements.in` in macOS12 monterey using venv python-3.9.9, pg_config not found

OS: monterey macOSv12.0.1 python venv: 3.9.9

requirements.in

# To update requirements.txt, run:
#
#    pip-compile requirements.in
#
# To install in localhost, run:
#
#    pip-sync requirements.txt
#

django==3.2.10  # https://www.djangoproject.com/

psycopg2-binary==2.9.2 # https://github.com/psycopg/psycopg2

After i turn on venv, then i type pip-compile requirements.in then i get a bunch of errors about pg_config not found

This is my asciinema https://asciinema.org/a/sl9MqmrayLAR3rRxEul4mYaxw

I have tried env LDFLAGS='-L/usr/local/lib -L/usr/local/opt/openssl/lib -L/usr/local/opt/readline/lib' pip-compile requirements.in but same.

Please advise.

from When run `pip-compile requirements.in` in macOS12 monterey using venv python-3.9.9, pg_config not found