Obnam I liked using, because I love the authors attention to testing and details. But I found it started taking longer and longer and longer to run a backup - to the point that it was crazy.
I switched to atic instead, which also started taking longer to run backups as more things changed, and longer still to check the archives, but it is still faster than obnam by a significant margin:
I switched to atic instead, which also started taking longer to run backups as more things changed, and longer still to check the archives, but it is still faster than obnam by a significant margin:
https://attic-backup.org/