uv isn't a performance improvement on pip but a ground-up rewrite in a completely different language.
Last I checked it's nothing more than a port of pip to rust.
I'm not sure it would be a good idea. Python patterns don't necessarily make good rust patterns. Even ignoring larger code structure (e.g. single ownership*) you'd practically have to do a second pass to stop using python compatible types (except in the exposed interface) if you wanted an idiomatic rust library at the end of it. But it's definitely possible.
* Which you don't "have to" do in rust, you can use `Rc<RefCell>` everywhere and imitate python instead. It's just throwing some of the advantages of rust and adding some noise to type signatures.
> Limitations
> While uv supports a large subset of the pip interface, it does not support the entire feature set. In some cases, those differences are intentional; in others, they're a result of uv's early stage of development.
> For details, see our pip compatibility guide[1]
> Like pip-compile, uv generates a platform-specific requirements.txt file (unlike, e.g., poetry and pdm, which generate platform-agnostic poetry.lock and pdm.lock files). As such, uv's requirements.txt files may not be portable across platforms and Python versions.
[1] - https://github.com/astral-sh/uv/blob/main/PIP_COMPATIBILITY....