I suggest you create a fork of this, so you can modify it.

The approach used here is from https://developer.atlassian.com/blog/2016/02/best-way-to-store-dotfiles-git-bare-repo/

xcode-select --install

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"

To set this up on your machine, use the script setup_dotfiles.sh within this repo.
or run:
curl -Lks https://raw.githubusercontent.com/harryeslick/dotfiles/master/setup_dotfiles.sh | /bin/bash

This will

• git clone the dotfiles repository.
• setup the git mechanics to source control selected dotfiles using config command
• config files containing private data should not be commited
  • to prevent details leaking from .gitconfig or .zshrc, these repos are not tracked. an explicit .gitconfig.public and .zshrc.public are used and sourced in actual .zshrc...

Install brew packages and casks: bash brew_install.sh
Update MacOS default settings: bash mac_defaults.sh
Install conda/mamba: bash mamba_install.sh
setup the macOS dock: bash mac_dock.sh

After you've executed the setup any file within the $HOME folder can be versioned with normal commands, replacing git with your newly created config alias, like:

config status
config add .vimrc
config commit -m "Add vimrc"

.zsh_aliases defines a function to help

conf help
conf ls
conf add
conf update
conf rm