direnv use_nvm

.direnvrc

use_nvm()
{
  local version
  version="${1}"
  if [[ -e .node-version ]]; then version=$(<.node-version)
  elif [[ -e .nvmrc ]]; then version=$(<.nvmrc)
  fi

  if [[ -e ~/.nvm/nvm.sh ]]; then
    source ~/.nvm/nvm.sh
    nvm use "${version}"
  fi
}