nixpkgs / buttersink - ButterSink is like rsync, but for btrfs subvolumes instead of files, which makes it much more efficient for things like archiving backup snapshots. It is built on top of btrfs send and receive capabilities. Sources and destinations can be local btrfs file systems, remote btrfs file systems over SSH, or S3 buckets.

Homepage - https://github.com/AmesCornish/buttersink/wiki

License - GPL-3.0

Releases

0.6.9 (expand/collapse)
From commit 03bb7def to 00460bd6