I don't think I agree with the author's assessment here:

> The other reason is performance and that argument makes even less sense. Even if it mattered, we’re realistically talking about a difference in the ballpark of 100 ms, for an action executed rarely; it is equally possible that any gain will be outweighed by the time needed to fetch the 1.5 MiB wheel for uv-build.

Modern CI architectures are building Docker stacks from scratch and using a readthrough cache of wheels. Downloading may still be the dominant factor, but the second-dominant factor does start to add up, especially when the downloading gets cached at various layers.