Explore a comprehensive 28-minute video tutorial on Zammad, a free and open-source self-hosted helpdesk ticketing system. Learn about its features, installation process, and configuration options as a potential alternative to osTicket, Snappy, Help Scout, Happy Fox, and Freshdesk. Follow along with the first-run wizard, administrative interface setup, ticket creation process, and form customization. Discover how to install Zammad using Docker Compose, set up a reverse proxy with NginX Proxy Manager, and complete the startup wizard. Gain insights into Zammad's customizability and evaluate its suitability for your helpdesk support team's needs.