Get it from PyPi:
pip install crispy-forms-foundation
Register app in your project settings:
INSTALLED_APPS = ( ... 'crispy_forms', 'crispy_forms_foundation', ... )
Import default settings at the end of the settings file:
from crispy_forms_foundation.settings import *
Default template pack name used will be
All other django-crispy-forms settings option apply, see its documentation for more details.
Finally you will need to install Foundation assets in your project. For novices, a quick way is to use last Foundation compiled version from CDN links.