Hi! That is a pretty big question, and I am not sure how much of it is about
npm. I’ll try offering some general info in case you don’t get any specific replies.
node is a stand-alone runtime for java code, and is used to run
You can install
node on a Raspberry Pi: https://thisdavej.com/beginners-guide-to-installing-node-js-on-a-raspberry-pi/#install-node
A tip for next time is to summarise the main point of your issue in the title. People decide whether to read the topic from the title, based on whether they have answers or similar questions. Coming up with a suitable title is harder to do when you are a newbie of course!