List of Jupyter Kernels: https://github.com/jupyter/jupyter/wiki/Jupyter-kernels https://github.com/jupyter/jupyter/wiki/Jupyter-kernels IRuby: https://github

List of Jupyter Kernels: https://github.com/jupyter/jupyter/wiki/Jupyter-kernels https://github.com/jupyter/jupyter/wiki/Jupyter-kernels IRuby: https://github.com/SciRuby/iruby https://github.com/SciRuby/iruby conda-forge/ruby-feedstock: https://github.com/conda-forge/ruby-feedstock https://github.com/conda-forge/ruby-feedstock It looks like ruby-feedstock installs `gem`; but AFAIU there's not yet a way to specify gems in an environment.yml like `pip:` packages. There aren't many other conda-forge feedstocks for Ruby, though; /? Ruby https://github.com/orgs/conda-forge/repositories?q=Ruby https://github.com/orgs/conda-forge/repositories?q=Ruby