Install n8n on raspberry pi (natively)

n8n-install-pi.sh

#!/bin/bash

# updating repositories
sudo apt update

# installing build tools and python
sudo apt install build-essential python

# installing nodejs
curl -fsSL https://deb.nodesource.com/setup_18.x | sudo -E bash -
sudo apt install nodejs

# install n8n globally
npm install n8n -g

# adding systemd entry
sudo echo "[Unit]
Description=n8n - Easily automate tasks across different services.
After=network.target

[Service]
Type=simple
User=pi
ExecStart=/usr/bin/n8n start --tunnel
Restart=on-failure

[Install]
WantedBy=multi-user.target" > /etc/systemd/system/n8n.service

# reloading, enabling on boot and starting n8n
sudo systemctl daemon-reload
sudo systemctl enable n8n
sudo systemctl start n8n

Hey @MarioKart7z, it should actually be in /etc/system/systemd since n8n is installed outside of apt package manager.
I updated the script to use node 18 and updated the location of the systemd unit. Thanks for the report!