(CommandList
  children: [
    (TimeBlock pipeline:(C {(sh)} {(overlay_mll_utils_01_prepare.sh)}))
    (TimeBlock pipeline:(C {(sh)} {(overlay_mll_utils_02_disk_erase.sh)}))
    (TimeBlock pipeline:(C {(sh)} {(overlay_mll_utils_03_installer.sh)}))
    (TimeBlock pipeline:(C {(sh)} {(overlay_mll_utils_04_install.sh)}))
  ]
)