You got it! You'll need three values set in settings.py:

https://github.com/explorerhq/django-sql-explorer/blob/64170...

  def user_uploads_enabled():
      return (EXPLORER_USER_UPLOADS_ENABLED and
              EXPLORER_DB_CONNECTIONS_ENABLED and
              S3_BUCKET is not None)

It should be in the docs, but I'll make sure it's more prominent!