At a high level, the scope of libpod and podman is the following:
   * Support multiple image formats including the OCI and Docker image
     formats.
   * Support for multiple means to download images including trust & image
     verification.
   * Container image management (managing image layers, overlay filesystems,
     etc).
   * Full management of container lifecycle.
   * Support for pods to manage groups of containers together.
   * Resource isolation of containers and pods.
   * Support for a Docker-compatible CLI interface through Podman.

Podman is a daemon-less alternative to Docker.