I just looked at your GitHub repo and you mention some git Diff tools but not the builtin open diff or whatever it’s called now (I’m an old NeXT/WebObjects dev) I loved and still love that tool and use it for git diff. It comes with Xcode but you have to install the command line utils of course, for those that don’t know. There’s another tool Better Diff or something like that which is cross platform but it requires a license.
And I love the other hints. I use ohmyzsh as well and have some customizations but not what you have. And there’s what that I won’t mention the name of that has me intrigued as to what it does 
And the brew trick of dumping your list bundle is an awesome idea! Thanks!
One question: Do you automate any of your zsh commands from TextExpander? I ask because my current job requires using vagrant to bring up a k3s cluster and I have several aliases around master or worker nodes and am so used to aliases for that, but you don’t have many aliases or maybe you took them out of the .zshrc before you uploaded it to GitHub.