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# force delete
brew uninstall --force node
# change node_modules permission
sudo chown -R ${USER} /usr/local/lib/node_modules
# delete old node_modules (it's creepy, I know, but it's necessary)
rm -rf /usr/local/lib/node_modules
# free a lot of memory
brew cleanup
# install node and gpm
brew install node
npm i -g npm