Why are my Terminal sessions taking a long time to load? (hint: check your zshrc file for duplicate lines of code)

Why are my Terminal sessions taking a long time to load? (hint: check your zshrc file for duplicate lines of code)
Photo by Goran Ivos / Unsplash

This answer on Reddit helped troubleshoot. I just commented everything, and it made the load lightening fast. Then, on a closer look, I found this mess. No idea how it got to this, but commenting out all but one of them did the trick.