Rustic was started by a former restic contributor. My impression at the time was that he was frustrated with poor collaboration from restic maintainers (slow/no

Rustic was started by a former restic contributor. My impression at the time was that he was frustrated with poor collaboration from restic maintainers (slow/no response to his PRs). So it's a bit more than just "rewrite-it-in-rust". Many of his rejected/ignored restic PRs ended up being features in rustic: cold storage support, config file support, resumable operations, webdav server, etc.