Запуск нескольких проектов на nodejs+nginx

Как запустить несколько проектов nodejs+nginx на одном сервере с разными портами?

server {
    listen 80;
    listen [::]:80;

    server_name www.domain;
    root /var/www/jor/html;
    index index.html index.xml;
    

    
    location /socket.io/ {
                proxy_pass   http://localhost:3000;

                # the following is required for WebSockets
                proxy_redirect                off;
                proxy_set_header              Host             $host;
                proxy_set_header              Port             $server_port;
                proxy_set_header              X-Real-IP        $remote_addr;
                proxy_set_header              X-Forwarded-For  $proxy_add_x_forwarded_for;
                proxy_set_header              X-NginX-Proxy    true;
                proxy_pass_request_headers    on;
                proxy_set_header Upgrade $http_upgrade;
                proxy_set_header Connection "upgrade";
        }
        
    location = /robots.txt {
        alias /var/www/jor/html/robots.txt;
    }
}

const express = require('express');
const app = express();
const http = require('http');
const server = http.createServer(app);
const { Server } = require("socket.io");
const io = new Server(server);

io.on('connection', socket => {
      io.on('connection', function(socket) {
    socket.emit('hello', "eee");
});
})
  //connection.end();
server.listen(3001, () => {
  console.log('listening on *:3000');
});