Hi,

just wanted to suggest you use https://github.com/rustic-rs/rustic_core instead of calling the restic binary. This would give you the following benefits:

• only compile dependency, no dependency on existing binary
• decreased overhead (cpu/memory)
• no more lock hassle (as rustic runs lock-free)
• also support for rustic repositories features (e.g. hot/cold repos)

Note: As redu only needs read-only access to repositories (if I saw it correctly, only restic ls and restic snapshots), using rustic_core will also not touch the repository, but just applies read-only access..

Could be of course also used as optins, e.g. add a --rustic option which uses compiled-in rustic support instead of calling the restic binary.