Auth & Security Guides
// 4 in-depth guides — written for developers who have to pick an approach and live with it
In-depth guides
How to Set Up Authentication: Picking an Approach That Won't Trap You
Managed auth, backend-as-a-service, framework-native, or rolled by hand — what each actually costs you, and the migration traps that make auth the hardest thing to change later.
9 min readHow to Set Up Row-Level Security Without Locking Yourself Out
Postgres RLS, Firestore rules, and app-layer authorization compared — how each fails, why RLS breaks your admin tooling, and how to test policies before they cost you.
6 min readHow to Implement Role-Based Access Control That Survives Contact With Customers
Why the roles enum you ship in week one becomes a permissions table by month six — and how to model roles, permissions, and multi-tenancy so the migration doesn't hurt.
6 min readHow to Add API Key Authentication You Can Actually Rotate
Hashing, prefixes, scoping, and rotation for API keys — plus why storing keys like passwords breaks the one feature every customer eventually asks for.
6 min read