Install packages from Brew
brew install asdf
brew install gnupg
Create/update an asdf repo
if [ ! -d ~/.asdf ]; then
git clone https://github.com/asdf-vm/asdf.git ~/.asdf
fi
cd ~/.asdf
git checkout "$(git describe --abbrev=0 --tags)"
Tell asdf that you like nodejs
asdf plugin-add nodejs
bash -c '${ASDF_DATA_DIR:=$HOME/.asdf}/plugins/nodejs/bin/import-release-team-keyring'
Now you can install NodeJS versions, like this
asdf install nodejs 14.4.0