Prerequisites

I assume you're on a Mac, currently with macOS Sonoma (14.5).

You need:

clone & setup

git clone --recursive https://github.com/kleinmann/dotfiles.git ~/.dotfiles
cd ~/.dotfiles

brew install asdf
asdf install ruby 3.3.2
asdf global ruby 3.3.2
asdf shell ruby 3.3.2
gem install bundler

cd ~/.dotfiles
brew install gnupg
bundle
rake install
vim +PlugInstall +qall

brew tap Homebrew/bundle
cd ~/.dotfiles
brew bundle