040000 tree 488f28d888e8631deef799fe35dccd4ae803d176	contribution_guide
040000 tree 97a38d6659656cc153d6a7ecbc95189a240aaa02	core_specification
040000 tree 04a63dcae3e45c460c9c3d9776c3bab495ea7b13	le_profiles_specifications