I would also be interested.

I haven't dug into this at all yet, nor have I tried to optimize the size (or really, anything else).

However, the library part will be less than half of this - a lot of code is spent on the CLI specific stuff and would not be part of the library, which is mostly what I care about for the purposes of this project. The CLI part is just to try to prove the point that it actually does what Git does. The library part is what might be useful in that nothing else exists that does all of the things that it does (provide a reentrant linkable library that is feature complete with Git).