DietPi seems to install the latest Nodejs release by default.
There are known compatibility issues across different nodejs versions.
Would it be possible to offer installing different nodejs versions? At the very least offer LTS v Latest.
I would request the same.
currently found that the Node-Red contrib packages supports only the LTS v16 version and currently can’t use the i2c from node-red.
sudo npm install -g n
sudo n 16
An option to choose this on install would be an idea, I however hesitate since an older version may again be incompatible with other recent Node.js software 
. But at least something to add to our docs.