If you want to install packages on CAEN, enter umpm. No sudo needed!
Installation is one line:
curl -sSL https://raw.githubusercontent.com/EvanHahn/umpm/master/install | bash
Usage is pretty simple:
# what can we install?
umpm list
umpm search node
# how do we install a package?
umpm install node
# how do we unininstall a package?
umpm uninstall node
# how do we uninstall umpm completely?
umpm implode