Multi-tenant SaaS for $30/mo: the actual architecture
Every "build a SaaS" tutorial reaches for Kubernetes, managed Postgres, and three cloud services before the first user signs up. You don't need that. Here's a multi-tenant setup that runs 50+ tenants on subdomains, on one $30/mo VPS.
The requirement
White-label partnership program. Each partner gets a storefront at partner-{slug}.guardlabs.online with our catalog, their referral IDs baked in. New partner → automatic provisioning after payment webhook.
Phase 1 (0-50 tenants): wildcard SSL + nginx + Flask
