apptainer — Manage containers for HPC and scientific computing. Some subcommands such as `build`, `pull`, and `push` have their own usage documentation.
# source: tldr · verified

Examples:
  # Download a container from Docker Hub [GNU]
    $ apptainer pull path/to/image.sif docker://image:tag
  # Download a container from the Container Library [GNU]
    $ apptainer pull path/to/image.sif library://user/collection/container:tag
  # Build a container from a definition file [GNU]
    $ apptainer build path/to/image.sif path/to/definition.def

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