100644 blob 010a9b009b14a43ecca76e38ad325d49df49dad2	application_development.rst
040000 tree 5b2dfe4c8356541e7983ee29f410217207139a1b	external_lib
040000 tree d60c77aa9dcd98c03f4a5d6895102fae1f2044fc	out_of_tree_board