[est]

I wonder if this could be applied to git.

The git blob was hashed with a header of decimal length, and you change a slight bit of content, you have to calculate the hash from start again.

Something like CDC would improve this alot.

[oac]

It's done in xet as a replacement for git lfs: https://huggingface.co/blog/from-files-to-chunks

[pabs3]

Backup tools like restic/borg do this, I wonder if anyone has used them to replace git yet.