Hi, Thanks for the feedback. I created a more realistic test.yaml file to start (we can split it when more tests are added) and a parser. I was going to add patch support as input to mimic get_maintainers.pl output, but that might take some time. For now, you have to manually select a subsystem. I will try to find space on kernelci.org to grow this work but you can find a git tree here[0].