It probably wouldn't be too hard to create a fork of Git that replaces SHA-1 with SHA-256 (or Blake2, if that's your thing). At the same time, you could remove

It probably wouldn't be too hard to create a fork of Git that replaces SHA-1 with SHA-256 (or Blake2, if that's your thing). At the same time, you could remove the hash prefixes (blobs are prefixed with "blob") so that the hashes would be be identical to those generated by other software.