In this Guide, I want to cover installing ZITADEL with PostgreSQL on a Linux system. Please be aware that PostgreSQL support is still in Beta at the time of this writing, and you will need a PostgreSQL installation with Version 14 or higher. NGINX Proxy Create a new subdomain and point it to your server. Use certbot -d for creating a new SSL Cert. Create a new file in /etc/nginx/sites-available/domainname