100x is a bold claim but the Zig approach to optimizing hot paths in Bun makes a lot of sense. There is so much low hanging fruit when you actually dig into how package managers interact with git under the hood. Nice writeup, the before/after benchmarks are convincing.

But then there's this: "When evaluating the complete bun install improvements, it came out speed-wise to about the same as the existing git usage (due to networking being the big bottleneck time-wise despite more cases being slightly faster with ziggit over multiple benchmarks). Except, it's done in 100% zig and those internal improvements pile up as projects consist of more git dependencies. All in all, it seems like a sensible upstream contribution."

Sooo, after burning these 10k+ worth of tokens we find out that it's sensible to use it because the language (zig) feels good as opposed to git itself which now has +20 years of human eval on it. That seems. Well. Yeah...