Multi-Tenant SaaS Architecture in Next.js...

Multi-tenancy is one of those features that sounds simple and isn't. Organizations, team members, role-based access, shared resources -- done wrong, it's a security nightmare. Here's the pattern that works. The Data Model Everything starts with the right schema. The core structure: Users belong to Organizations through Memberships. model Organization { id String @id @default(cuid()) name String slug String @unique // URL-safe identifier plan String @default("free") createdAt DateTime @default(no