040000 tree 54994f6304478e01d3ea09f35f85a2a813de522d	fast
040000 tree 04fd0f1c468ec444a7859cb489560d39cf714edb	install_script
040000 tree 6a30b0733d57222d45f94c17c16cc2d969debb82	installation
040000 tree 691cdfc0738bdb8e71764580180b1dafda6ee7d1	slow
040000 tree 8a0e18d1807fd5d7b9bcf3f035a3a45cfc64d537	sourcing