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by dom0 3298 days ago
Not related at all. (Duplicacy != Duplicity)

Duplicity is a pretty straight good old-fashioned incremental backup program.

Duplicacy on the other hand is hash-based deduplication (BorgBackup / Attic, Restic etc. are some others).

The design of Duplicacy is slightly different from that of e.g. BorgBackup. Duplicacy, as the title says, uses a lock-free approach. BorgBackup and the handful of open source tools in the same spirit use a synchronized approach.