Developer Explanation

These articles explain the thinking behind TT Time Tracker's architecture. They are not instructions — they are discussions that help you understand why things are built the way they are, so you can make better decisions when contributing.

Articles

• Why TanStack DB? — Why the frontend uses TanStack DB instead of plain TanStack Query
• Multi-Tenancy Design — How tenant isolation is enforced across the stack
• Auth Architecture — Why cookie-based sessions instead of JWT
• Worker Architecture — Why heavy processing runs in a separate service
• OpenAPI Workflow — The NestJS → OpenAPI → typed SDK pipeline
• Feature Flags — How per-tenant feature toggles work