Specifically, I would like a way to determine which packages I am the sole maintainer of or the main maintainer.

Long story short, I've been spending far too much time on packaging work and it's taking away from $LIFE, $DAYJOB, and other hobbies I used to enjoy. I need to offload the primary maintenance of some of them to "lighten the load" so to speak.

No worries, I'm not disappearing or anything and will continue to do what I can. 

Thanks,
Richard