Can I use Duplicity with S4? Anamika October 20, 2017 11:13 Follow Yes, you can! Duplicity can use Tahoe-LAFS as a file server protocol and you can use S4 for your grid. In this case, you wouldn’t need Gridsync. Find more info here. Related articles How do I restore from S4 using the tahoe-backup command? Can invite codes be used multiple times? How can I communicate securely with LeastAuthority.com? Comments 0 comments Please sign in to leave a comment.