Workflows for Sync Shutter, written for working photographers
Both routes the app supports, SFTP and S3-compatible, with the exact fields to fill in and what lands on the NAS.
What counts as a pair, the three choices and who picks each, and the neighbouring settings people mix up with it.
Setting up Amazon S3 Glacier tiers as a destination, with the year's cost and the cost of a restore worked out in tables.