# Data

- [Database (PostgreSQL + Prisma)](/platform/platform-stack/data/database-postgresql-+-prisma.md): Core tables and what they store.
- [Queue system (BullMQ + Redis)](/platform/platform-stack/data/queue-system-bullmq-+-redis.md): Background jobs and scheduling.
- [Reliability data model](/platform/platform-stack/data/reliability-data-model.md): What gets persisted and how it feeds scoring.
