Add instructions for uv and pixi

[gregorywaynepower]

Would you be open to a pull request adding additional instructions under the Mosaic Server Usage for uv and pixi?

[domoritz]

We use uv internally so that makes sense to me. I haven't used pixi so would not be in support of documenting it.

[gregorywaynepower]

Sounds good to me on the uv side of things. For Pixi's, it's built on top of the conda ecosystem, if you're familiar with that? Lets users manage Python, R, npm, and other dependencies.

[domoritz]

Yeah, I've used conda a bunch.

I'd say let's restrict it to pipx and uv since one is standard and the other one is what we use internally. There are too many other packaging systems in python to document.

[gregorywaynepower]

I agree on there being too many packaging systems to document.

I ask this question out of ignorance: why not replace pipx with uv tool install or uvx?

[domoritz]

pipx is maintained by the Python Packaging Authority ad has been around for a while. uv came out this year. People are more familiar with pip.