Key to being a good engineer is largely to use your judgment and avoid problems that would require a good engineer to solve them. Code matters!
Most people don’t like to write about their code disasters which is a shame because upon the salt flats of their dried lake of tears, we can all mine the lithium of Valuable Lessons For The Future.
Test filtering is a very important part of an automation framework; for various reasons you don’t want all your tests to be run. eg: some only work on physical devices, some only work in local environments etc.