Are you qualified for developer relations?
You are reading a course written by a developer relations professional. If you follow 75% of the advice here, you will be well qualified to be a developer relations professional. It just so happens that much of the same advice helps coders in the non-coding aspects of their careers (which is the only reason this course made sense to write).
So, if you’ve read the course and practiced these principles, strategies, and tactics, we can assume you’re qualified and should easily get the job. Our task now is to figure out whether you want the job.