Add your GitHub token to your $HOME/.netrc file.

echo "machine github.com login <username> password <token>" >> $HOME/.netrc

Then install the chezmoi dotfile manager and init it with this repository:

sh -c "$(curl -fsLS get.chezmoi.io)" -- init --apply git@github.com:$GITHUB_USERNAME/dotfiles.git

Add the following to the $HOME/.config/chezmoi/chezmoi.toml file:

[data]
    name = "Jon Doe"
    email = "jon.doe@example.org"
    gh_user = "jondoe47"
    workspaces = "/home/jon/workspaces"
    editor = "nvim"