040000 tree f2946e5cf51a194dde869083c2ba991266d0aa9d	fast
040000 tree 6255dedd7b5d671e816b0b11188d9ff97b7cdf52	install_script
040000 tree 6a30b0733d57222d45f94c17c16cc2d969debb82	installation
040000 tree fdc658cfcf74b7890506a76126edcc4ff6b9f45b	slow
040000 tree a611013c42f2e780b92d443a8a3e97c5addc45dc	sourcing