Checks

• I have checked that this issue has not already been reported.

• I have confirmed this bug exists on the latest version of pixi, using pixi --version.

Reproducible example

❯ pixi init
❯ pixi add python solara
  × Is a directory (os error 21)

Issue description

This code installs solara. Solara sets a default value for Jupyter to enable server rendering, this is done under prefix/etc/jupyter/....

pixi sets prefix as a file with text, pointing to the .pixi folder.
I believe, as solara is installable using micromamba, that pixi does this in an incorrect way.

Expected behavior

Installation to work correctly.