For various reasons, we want have our releases available as containers. This issue exists to better track the whole thing. * spack's direct support: * Official docs: https://spack.readthedocs.io/en/latest/containers.html * First commit introducing functionality: https://github.com/spack/spack/commit/9635ff3d20c17a92a89cf82db8d3f877dd04e1c7