How do I use pixi and uv together

[sidmadala]

I am wondering how I can best use pixi and uv together. Previously, I have been using conda/mamba alongside pip which enables me to install pypi dependencies inside the appropriate conda environment. Should I add an instance of uv to each pixi environment I wish to create, or should I do pixi global install uv and activate pixi shell inside the environment I want to use uv in? Any comprehensive documentation for how this interop works relative to conda and pip would be much appreciated. The reason I ask this is because I need to use uv for #3730 via --no-build-isolation alongside options when installing specific packages.

NOTE:

I have tried the shell method already with a global uv installation and it seems to create a .venv folder in my project even though these packages should just be installed in the .pixi environment located in the same directory. It appears that I can delete the .venv and still use the pypi libraries I installed via uv. Is this recommended behavior?