Calling nvm use automatically in a directory with a .nvmrc file

# Put this into your $HOME/.zshrc to call nvm use automatically whenever you enter a directory that contains an .nvmrc file with a string telling nvm which node to use:
# place this after nvm initialization!
autoload -U add-zsh-hook
load-nvmrc() {
  if [[ -f .nvmrc && -r .nvmrc ]]; then
    nvm use
  elif [[ $(nvm version) != $(nvm version default)  ]]; then
    echo "Reverting to nvm default version"
    nvm use default
  fi
}
add-zsh-hook chpwd load-nvmrc
load-nvmrc

https://github.com/tomsquest/nvm-auto-use.zsh/blob/master/nvm-auto-use.zsh

This had an interesting addition to this script; if you don't have the .nvmrc version installed, it installed it for you. Just something to consider :)