node-js-service

    script.sh

#! /bin/bash
source ${HOME}/.bashrc

cd /absolute/path/to/my/project
export NODE_ENV=development
npm start

Now change it's mode to be executable

chmod +x script.sh

Now we can create our service (located for instance in /etc/systemd/system/my-project.service)

    my-project.service

[Unit]
Description=My Project
After=syslog.target network.target

[Service]
Type=simple
Restart=always
RestartSec=1
ExecStart=/path/to/my/script.sh
User=root

[Install]
WantedBy=multi-user.target

And now let's run it and enable it

systemctl start my-project
systemctl enable my-project