DIY Cloud Infrastructure: A Complete Self-Hosting Guide with Docker and Security Hardening

This practical guide demonstrates how to run 18+ production services on a single €15/month Hetzner server using Docker Compose, with automated security hardening scripts and open-source alternatives to proprietary SaaS. It shows developers that enterprise-grade infrastructure and data sovereignty are achievable without significant cost, making self-hosting increasingly viable for privacy-conscious teams and cost-optimized operations.