040000 tree 8f4da4cb6885a68f1b34be9e2d7cb727cd61c5c5	build
040000 tree 94a0fff1b5aac78e203134e14211adee8329ccb6	build_rules
040000 tree 3522f372a8dc53350d496e61c73a80299c6ca562	dev
040000 tree 22caf4e6d69b0dba5d4ddeabf06ba80f60cc8b1b	gui
040000 tree 6bedfcfd2dd4cc368f559c0f9dc08808135d725b	package
040000 tree a2429e8b93697f5d22edb5517131fcf06ffbc0e5	test
040000 tree 544425a8f378f24fa9a142685fceeb9602d38754	tutorials