git clone --bare https://github.com/mburgosh/dotfiles.git $HOME/.dotfiles
This will create a bare repo, to actually checkout the code it in the home directory you call
git --git-dir=$HOME/.dotfiles/ --work-tree=$HOME checkout
By cloning the repo and using fish this will add the alias dotfiles to /usr/bin/git --git-dir=$HOME/.dotfiles/ --work-tree=$HOME so you can use as a replacement for git to operate on that repo.
dotfiles pull
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Install homebrew (link)[https://brew.sh/]
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Install fish
brew install fish