How to make the server always running?

Question

Node.js

There is a vds server.
OS ubuntu.
Well and through ssh I work with it.
I raise the server in putty
nodemon /home/netwixell/www/run.js
Well, 46.229.213.73:3000 I get Hello, world!

var http=require('http'),
  server=new http.Server(),
  port=3000;
server.listen(port);
server.on('request', function(req, res){
  res.end("Hello, world!");
});
console.log('Server running on port '+port);

But if I close the terminal or turn off the computer, then naturally everything falls.
Now the question is how to make the server always running. ?
If there was a gui and I would have access to drp, I could connect, make an appointment and leave for tea.

Answer 1

How to deploy nodejs with systemd

Answer 2

tmux, screen

Answer 3

# nohup nodemon /home/netwixell/www/run.js &
ENTER