I know it is too late, but i asked the lzip developer about the lack of an API (https://lists.nongnu.org/archive/html/lzip-bug/2025-08/msg00000.html) and he replied (https://lists.nongnu.org/archive/html/lzip-bug/2025-08/msg00001.html). Thanks for DAR.
It would be useful if dar_manager could create encrypted databases (-C option). Thanks for dar.
lzip compression support