nixos-config/components/virtualisation/podman.nix

{
  config,
  lib,
  pkgs,
  ...
}:
with lib;
{

  options.components.virtualisation.podman.enable = lib.mkOption {
    type = lib.types.bool;
    default = config.components.virtualisation.enable;
  };

  config = mkIf config.components.virtualisation.podman.enable {

    virtualisation.podman.enable = true;

    # make sure /var/lib/containers/storage is a zfs dataset
    virtualisation.podman.extraPackages = [ pkgs.zfs ];

  };

}