Running 3 SaaS products on a single Hetzner CCX23

Short summary

A developer runs three SaaS products on a single €30/month Hetzner CCX23 VPS using Docker Compose, with each product getting its own Postgres instance for blast radius isolation and independent backups. For pre-revenue founders, a well-architected single box beats distributed infrastructure when operationally constrained. Trade-offs include simplified TLS/firewall rules, unified incident response, and easy scaling to managed Postgres without affecting other products.

• •Three SaaS products running on one €30/month dedicated-CPU VPS with Docker Compose and separate Postgres instances
• •Architecture prioritizes operational simplicity (one person) and blast radius isolation over distributed scaling
• •Clear decision framework: cost discipline, reduced surface area, co-location wins, and single failure mode

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