install nvm on MacBook M1 chips

nvm-m1.txt

# Install the most recent version of node or one that is at least v15
nvm install node

# Change to this new version
nvm use node

# Install Rosetta 2, if you haven't already
softwareupdate --install-rosetta

# Uninstall node v12 and v14, if you installed them before.
# Change the 'x's and 'y's to match the installed versions:

nvm uninstall 12.xx.x
nvm install 14.yy.y

# Open an x64 instance of zh:
arch -x86_64 zsh

# Install the desired Node versions and check if they are installed:
nvm install 12.xx.x
node -v

nvm install 14.yy.y
node -v

# Verify that you're still using an x64 shell:
node -p process.arch

# Exit the x64 instance:
exit

# Check that you-re back in an arm64 shell:
arch