Insights for builders
Role-based access control explained through NIST and ANSI standards: flat, hierarchical, constrained, and symmetric RBAC compared against ABAC, ACLs, and ReBAC to help B2B SaaS teams choose the right model.
Part 2 of 2: multi-tenant RBAC for B2B SaaS, covering role explosion, stale session tokens, three implementation approaches, and how Clerk's organizations, roles and permissions map onto that model.
Part 1 of 2 builds production Next.js authentication with Clerk in the App Router: defense in depth, step-by-step setup, Dashboard configuration, and the Proxy and session pitfalls to avoid.
Part 2 of 2 covers what breaks when Next.js authentication scales, wiring Clerk into Supabase Row Level Security, and how 8 providers compare on setup, pricing, and multi-tenancy.
Part 1 of 2: the real cost of building your own authentication — build time, endless maintenance, breach liability, compliance, and 3-year TCO — versus buying Clerk.
Part 2 of 2: build vs. buy authentication compared feature by feature, when each makes sense, how to choose a provider, and where Clerk fits, with code to first login.