"architecture""scalability""system-design"
8 min readMulti-Tenancy Architecture: One Database or Many? The Decision That Will Haunt You 🏗️🏢
We built a SaaS e-commerce backend for hundreds of merchants and made our tenancy decision in week 1. Three years later, we were still paying for it. Here's what I wish I knew before touching the database schema.
Mar 10, 2026