sorin-ionescu/prezto ? reverse-engineered prompt

Build me a Zsh setup framework that makes a terminal feel polished right away.

I want it to give me sensible defaults, helpful aliases, useful shell functions, autocomplete, and a good looking prompt with a few theme options. It should be easy to install by cloning into my Zsh config folder, then linking or sourcing the provided startup files so it works when I open a new terminal. I also want a clean way to turn features on and off with modules, and a simple way to add my own extra modules later.

Please include a straightforward update command so I can pull in changes and keep everything in sync. Keep it organized so someone can customize their shell without having to understand every detail first, but still make it easy to dig into the source if they want to. If you need to check current Zsh docs or best practices, go ahead and look them up online.