Drop support for non Linux distributions
The IGWN Conda Distribution, at least in CI and on the web, renders environments for all platforms supported by conda-forge.
Ensuring compatibility for all packages with this wide array of platforms is more work than we currently have effort available.
As a result, I recommend that the IGWN Conda Distribution remove all support for non-Linux platforms, and possibly all platforms except for Linux x86_64.
This ticket only covers the curation and rendering of the environments, and not the upstream building of packages as part of the conda-forge organisation.