What stack do I inherit if I self-host UAGS?

The stack is mainstream and self-hostable — no hard lock-in to a single proprietary cloud. Operator isolation is enforced at the database and application layers.

• PostgreSQL as the relational store with operator-scoped policies.
• Redis for cross-service messaging and quotas.
• Celery for background jobs (notifications, billing, maintenance).
• FastAPI for HTTP APIs and operator dashboards.
• WhatsApp (approved provider) when production is enabled per operator policy.