pyaudio is a native python module requirement. It is recommended to install this from your package maintainer prior to installing other dependencies from pip.
sudo pacman -S python-pyaudio # Arch Linuxsudo apt install python3-pyaudio # Debian/Ubuntu
To install python dependencies without sudo: pip install --user -r requirements.txt
You must add the pervalert service account JSON key from GCI to the /private directory.