For Mac: 1. To install or update nvm curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.35.3/install.sh | bash 2. To verify that nvm has been installed, do: command -v nvm 3. nano ~/bash_profile 4. source ~/.bash_profile 5. nvm 6. nvm install 10.21.0 7. nvm install 14.4.0 8. node -v (show the current one you are using) 9. If you want to see what versions are available to install: nvm ls-remote 10. nvm use 10.21.0