Blog

Frostholm v0.4: Backblaze B2 backend and faster chunking

Native B2 support, FastCDC chunker, parallel restore, and fh diff. The biggest release yet.

How content-addressed deduplication works inside Frostholm

CDC chunking, BLAKE3 hashing, pack-file layout, and why fixed-size chunks are the wrong default.

Frostholm vs restic vs Borg: a realistic benchmark

Year-end numbers on a 180 GB photo library. Backup speed, restore speed, storage efficiency, memory usage.