[tazjin]

I just tried this on nixpkgs (~5GB when cloned straight from Github).

The first option mentioned in the post (--window 250) reduced the size to 1.7GB. The new --path-walk option from the Microsoft git fork was less effective, resulting in 1.9GB total size.

Both of these are less than half of the initial size. Would be great if there was a way to get Github to run these, and even greater if people started hosting stuff in a way that gives them control over this ...