This arrangement of dotfiles is taken from here and here and here.

This approach keeps all the dotfiles at their original locations, and avoids symlinks entirely (as opposed to the general approach of putting all config files in one directory and symlinking them with a script or GNU stow). Basically, we create a bare git repo and set the work-tree to be our $HOME directory. Then everytime we add a new config file to this repo, we do so specifying this work-tree (we make this easy by defining an alias command). This lets us keep the config files at their original locations, while also allowing them to be under version control. Here's how to do it:

git init --bare $HOME/.dotfiles
alias dotfiles='git --git-dir=$HOME/.dotfiles/ --work-tree=$HOME'
dotfiles config --local status.showUntrackedFiles no
dotfiles remote add origin https://github.com/githubuser/.dotfiles.git

You'll need to change the remote URL to your git repo. You should also add the dotfiles alias command to your .bashrc or .zshrc. Now, you can use the dotfiles command to do git operation from anywhere in your $HOME directory:

cd $HOME
dotfiles add .tmux.conf
dotfiles commit -m "Add .tmux.conf"
dotfiles push

To set up a new machine, clone the repo to a temporary directory. This is because you might have some default config files in your $HOME which will cause a normal clone to fail.

git clone --bare https://github.com/USERNAME/dotfiles.git $HOME/.dotfiles
alias dotfiles='git --git-dir=$HOME/.dotfiles/ --work-tree=$HOME'
dotfiles checkout

Use brew bundle --global to install everything in your ~/.Brewfile

Much of what used to be installed and managed by HomeBrew is now managed by mise-en-place, a version manager similar to rbenv or pyenv but with plugins to manage just about anything

The .default-* files control the Ruby Gems, Python Modules, Rust Crates, NodeJS Packages, and Go Packages that are maintained/installed when you install a new version of those tools

My VIM setup remains fairly simple but depends on many linters and LSP providers maintained via mise or homebrew

I install MacVIM as most of my machines run macOS, but the setup should work with plain jane vim as well (some day NeoVIM or OniVIM2)

The main plugins I depend on are ALE(linting) and deoplete(completion) and they both use vim-lsp to use LSP providers.

I do depend on the FiraCode font to provide some powerline and git merge glyphs in lightline and I do use ligatures in my setup.

I use Hyper, I like it. You could easily adapt this to iTerm2. Hyper supports my font ligatures. My preferred color theme remains Dracula or Daycula

Many of my configs will load up a .blah-local file if it exists for settings and such that are only required on that particular machine/environment.

graph TD;
    A-->B;
    A-->C;
    B-->D;
    C-->D;