devices: {
  disk = builtins.listToAttrs (map
    (device: {
      name = device;
      value = {
        type = "disk";
        device = "/dev/${device}";
        content = {
          type = "gpt";
          partitions = {
            ESP = {
              size = "1G";
              type = "EF00";
              content = {
                type = "mdraid";
                name = "boot";
              };
            };
            ZFS = {
              size = "100%";
              content = {
                type = "zfs";
                pool = "zroot";
              };
            };
          };
        };
      };
    })
    devices);
  mdadm = {
    boot = {
      type = "mdadm";
      level = 1;
      metadata = "1.0";
      content = {
        type = "filesystem";
        format = "vfat";
        mountpoint = "/boot";
      };
    };
  };
}