{ "defaults":
  { "type": "export"
  , "target": "defaults (unexported)"
  , "flexible_config":
    ["ARCH", "ENV", "HOST_ARCH", "TARGET_ARCH", "TOOLCHAIN_CONFIG"]
  }
, "defaults (unexported)":
  { "type": ["@", "rules", "shell", "defaults"]
  , "toolchain": ["shell-busybox"]
  , "bin dirs":
    [ "shell-busybox/bin"
    , "shell-busybox/sbin"
    , "shell-busybox/usr/bin"
    , "shell-busybox/usr/sbin"
    ]
  }
, "shell-busybox":
  { "type": "install"
  , "dirs": [[["@", "busybox", "", "busybox"], "shell-busybox"]]
  }
}