dadbodgeoff/drift

Implement subscription tier-based feature gating and usage limits. Centralized tier configuration, database usage tracking, and clean APIs for checking limits.

Centralized environment variable management with validation. Fail fast at startup if config is invalid. Supports multi-environment setups (dev/staging/prod) with type-safe access.

Implement multi-layer caching with Redis, in-memory, and HTTP caching. Covers cache invalidation, stampede prevention, and cache-aside patterns.

Async job processing with validated state transitions, progress tracking, and asset linking. Ensure jobs always reach terminal states with proper error handling.

Set up a Turborepo + pnpm monorepo for sharing code between frontend, backend, and workers. One repo, multiple packages, shared types, parallel builds.

Cloud storage integration with signed URLs, visibility control, multi-tenant path conventions, and presigned uploads for direct client uploads.

Heartbeat-based health monitoring for background workers with configurable thresholds, rolling duration windows, failure rate calculation, and stuck job detection.

Implement a feature flag system for gradual rollouts, A/B testing, and kill switches. Use when you need to control feature availability without deployments, test features with specific users, or implement percentage-based rollouts.

External AI API integration with retry logic, rate limiting, content safety detection, and multi-turn conversation support for image generation.

Implement robust background job processing with dead letter queues, retries, and state machines. Use when building async workflows, scheduled tasks, or any work that shouldn't block the request/response cycle.

Redis-backed SSE stream management with stream registry, heartbeat monitoring, completion store for terminal events, and automatic orphan cleanup via background guardian process.

Manage data flow when producers outpace consumers. Bounded buffers, adaptive flushing, and graceful degradation prevent OOM crashes and data loss.