Zend certified PHP/Magento developer

PWA The “ENVFILEPATH” variable is not set

When I run docker-compose up -d in my brand new cloned PWA Studio repo, this is what I got:

WARN[0000] The "ENVFILEPATH" variable is not set. Defaulting to a blank string. 
Failed to load /projects/pwa-studio: read /projects/pwa-studio: is a directory

How could I fix it?