Tried the script, and got this node error:
pi@magicmirror:~ $ bash -c "$(curl -sL https://raw.githubusercontent.com/sdetweil/MagicMirror_scripts/master/upgrade-script.sh)"
No LSB modules are available.
doing test run = true, NO updates will be applied!
update log will be in /home/pi/MagicMirror/installers/upgrade.log
Check current Node installation ...
Node currently installed. Checking version number.
Minimum Node version: v16.9.1
Installed Node version: v16.1.0
Node should be upgraded.
A Node process is currently running. Can't upgrade.
Please quit all Node processes and restart the update.
running process(s) are
pi 15102 15101 0 Jan08 ? 00:00:00 node ./node_modules/.bin/electron js/electron.js
pi@magicmirror:~ $