Got from here:
brew install libpq --build-from-source
brew install openssl
export LDFLAGS="-L/opt/homebrew/opt/openssl@1.1/lib -L/opt/homebrew/opt/libpq/lib"
export CPPFLAGS="-I/opt/homebrew/opt/openssl@1.1/include -I/opt/homebrew/opt/libpq/include"
brew install postgresql