Duplicacy is backup software. It has the advantage of creating backups across devices, storage locations, and provides for easy offsite replication. It is the heavy lifter of My backup strategy and runs as a Docker or through the web interface.
When pruning local and remote copies, make sure both complete on the same day, and run with the same parameters.
When creating new data stores, even if they are not going to be the same target, set them up as copy compatible to allow migration of backups from one storage to another if needed.
When run as a service, the config file is C:/ProgramData/.duplicacy-web/duplicacy.json
See also