Sorry, the "bloat" and the "single file" were different goals. I'm sorry if that wasn't clear. That being said, the fact that it was in a single file meant that I was more concious of the size, and contributed to me cutting out my own bloat/planned and unnecessary features.

This isn't meant to be the pinnacle of design here; just a fun exercise which incidentally made my life easier to manage (I'm sick of using Drupal for blogs, and getting constant spam posts and user notifications from wordpress. I also don't use most of the features from either of them, so this has provided me with just the features I want).