Use pixi and nox

[barneydobson]

@barneydobson @dalonsoa I've used pixi for a while. It's a very exciting up-and-coming project and their road map is great. They are planning to use uv instead of pip which makes it even more exciting. However, it's still in early stages and does not support all use cases. It's definitely something to keep an eye on, though.

My current workflow is using micromamba for development and nox for all other stuff. This requires having two env files: environment.yml for CI testing only, and environment-dev.yml for development purposes. I usually put them under a folder called ci/requirements. So, for development purposes, the command becomes:

micromamba env create -f ci/requirements/environment-dev.yml
micromamba activate env_name

Then, testing, linting, and type checking becomes just running:

nox

Originally posted by @cheginit in #107 (comment)

[cheginit]

Pixi is finally adding support for pyproject.toml! Check out the issue here.