There seems to be no activity on the feedstock PRs. Can you link to the place where you are trying to fix any issues? This setup is quite common, sadly polars is way more complex than it needs to be. Maybe pydantic-core-feedstock/recipe/meta.yaml at 38d4bda0879ce8e7315126a93fd143e5298cbcd6 · conda-forge/pydantic-core-feedstock · GitHub is a better starting point for you.