It'd be cool if genbackupdata could read a summain manifest, and create an approximation of the directory tree. Every file mentioned in the manifest should be created, and every unique file content should be unique, but obviously there's no way to actually reproduce the original file content.

This'd be useful for benchmarking backups with almost-real data sets: collect a few representative manifests from real machines, using Summain's anonymising features, and then generate backup data based on those.