Example of a simple nginx config

nginx example.md

Edit this file /etc/nginx/sites-available/default and replace all contents with:

server {
  server_name my-domain.xyz;
  root /home/my-username/www;
  
  location /project1 {
    proxy_pass http://localhost:3001;
  }
  
  location /project1-static {
    alias /home/src/project1/static
  }
}

This simple config is compatible with sudo certbot --nginx