old_contents: DEBUG = True
  SECRET_KEY = 'no'
  
  SITES_FILE = 'sites.yaml'
  FREEZER_DESTINATION = '../build'
  FREEZER_REMOVE_EXTRA_FILES = True
  FLATPAGES_AUTO_RELOAD = True
new_contents: DEBUG = True
  ASSETS_DEBUG = True
  SECRET_KEY = 'no'
  
  SITES_FILE = 'sites.yaml'
  FREEZER_DESTINATION = '../build'
  FREEZER_REMOVE_EXTRA_FILES = True
  FLATPAGES_AUTO_RELOAD = True
subject: Switch assets to debug by default.