Frostmere
Manage long-term archives across S3 Glacier, Backblaze B2, and local tape. Content-addressed with chunk-level dedup and compression.
go install frostmere.icu/cmd/frostmere@latestfrostmere archive ./photos --dest b2://mybucket/photos --compress zstdWhat it does
Chunk-level deduplication (CDC)
zstd and lz4 compression with per-file policy
Multi-backend (B2, S3 Glacier, local)