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3 days ago they sent a newsletter about their new (alpha quality) b2sync tool which essentially is a “rsync to backblaze” utility.

This makes their offer very interesting.

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Can this tool offer deduplication (so that changing a folder name does not re-upload thousands of files) or is that something I would have to code into my own backup solution?

No, it is even less than rsync. It can only upload a folder recursively and skip files with common modification time on local and remote.

Considering though that before that you couldn't even upload a directory, only files, this is a huge step. :)

I currently need some help whipping up a solution for this.

git with lfs

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