The new one time share feature is great! It could be more useful, however, if the shared file was synced in the background to any linked devices for that identity, so that if the sharing device (say a laptop or a phone) go offline, the file can still be shared. It also allows faster downloading by the receiving peer since it can receive from multiple peers.   This would be particularly great with an "encrypted peer" linked device type, but I've saved that for my other post today...