xopen dependency issue

[karel-brinda]

Xopen doesn't install on Mac M1:

$ m.t
if [ -d ".test" ]; then \
		/Library/Developer/CommandLineTools/usr/bin/make -C .test test; \
	else\
		snakemake --cores all --use-conda --conda-prefix=".conda" --rerun-incomplete --printshellcmds ; \
	fi
if [ -d ".test" ]; then \
		/Library/Developer/CommandLineTools/usr/bin/make -C .test test; \
	else\
		snakemake --cores all --use-conda --conda-prefix=".conda" --rerun-incomplete --printshellcmds ; \
	fi
Building DAG of jobs...
Creating conda environment workflow/envs/basic_env.yaml...
Downloading and installing remote packages.
CreateCondaEnvironmentException:
Could not create conda environment from /private/tmp/~2025-04-01_1628-22/miniphy/.test/workflow/rules/../envs/basic_env.yaml:
Command:
mamba env create --quiet --file "/private/tmp/~2025-04-01_1628-22/miniphy/.test/.conda/18ef9711ffea4d93651c174b20630c08_.yaml" --prefix "/private/tmp/~2025-04-01_1628-22/miniphy/.test/.conda/18ef9711ffea4d93651c174b20630c08_"
Output:
/Users/karel/miniconda/lib/python3.10/argparse.py:1943: FutureWarning: `remote_definition` is deprecated and will be removed in 25.9. Use `conda env create --file=URL` instead.
  action(self, namespace, argument_values, option_string)
Channels:
 - conda-forge
 - bioconda
 - defaults
Platform: osx-arm64
Collecting package metadata (repodata.json): ...working... done
Solving environment: ...working... failed

PackagesNotFoundError: The following packages are not available from current channels:

  - xopen==1.7.0

Current channels:

  - https://conda.anaconda.org/conda-forge
  - https://conda.anaconda.org/bioconda
  - https://repo.anaconda.com/pkgs/main
  - https://repo.anaconda.com/pkgs/r

To search for alternate channels that may provide the conda package you're
looking for, navigate to

    https://anaconda.org

and use the search bar at the top of the page.