cannot mirror uv workspace to pixi workspace when packages depend on one another

[cameronraysmith]

If we declare a depedence of the root package on a monorepo leaf package in the form that functions as expected for our uv workspace,

[project]
dependencies = [
  "pnt-functional>=0.1.0",
]
name = "python-nix-template"
version = "0.1.0"

...

[tool.uv.sources]
pnt-functional = { workspace = true }

[tool.uv.workspace]
members = ["packages/*"]

the uv package installation and testing functions as expected; however, we cannot lock and install the corresponding pixi workspace. See:

• pixi workspaces: https://pixi.sh/latest/build/workspace/
• uv workspaces: https://docs.astral.sh/uv/concepts/projects/workspaces/

If we declare the pixi dependency among the pypi-dependencies

[tool.pixi.dependencies]
python         = ">=3.11"

[tool.pixi.pypi-dependencies]
pnt-functional = { path = "packages/pnt-functional", editable = true }
python-nix-template = { path = ".", editable = true }

we get

❯ pixi list -v
 INFO pixi_manifest::pyproject: Overriding the requires-python with the one defined in pixi dependencies
Error: 
  × failed to parse project from ~/projects/python-nix-template/pyproject.toml: Unsupported pep508 requirement: 'pnt-functional>=0.1.0'

whereas if we place it among the pixi dependencies

[tool.pixi.dependencies]
pnt-functional = { path = "packages/pnt-functional" }
python         = ">=3.11"

[tool.pixi.pypi-dependencies]
python-nix-template = { path = ".", editable = true }

we get

 INFO pixi::lock_file::update: updated conda packages in the 'default' prefix in 1s 622ms 939us 166ns
 INFO resolve_pypi{group=default platform=osx-arm64}: pixi::lock_file::resolve::pypi: the following python packages are assumed to be installed by conda: expression 5.6.0, typing-extensions 4.12.2, beartype 0.20.0

Error: 
  × failed to solve the pypi requirements of 'default' 'osx-arm64'
  ├─▶ failed to resolve pypi dependencies
  ╰─▶ Because pnt-functional was not found in the package registry and you require pnt-functional>=0.1.0, we can conclude that your requirements are unsatisfiable.

[cameronraysmith]

Workaround in https://github.com/sciexp/python-nix-template/tree/v0.1.0 is for each package in packages to be treated as independent from the perspective of pixi. This would prevent using this in a development environment but allows to test builds etc in CI.