Iii Engine Config

You'll use this to configure the iii engine runtime through a single YAML file that defines modules, workers, adapters, and queue behavior. Think of it like Docker Compose but for iii's WebSocket-based engine that runs on port 49134. The config lets you swap storage backends per module (in-memory, file, Redis, RabbitMQ) and control retry logic and concurrency for named queues. It handles environment variable substitution with defaults and can auto-spawn external worker processes. If you're building on iii, this is how you wire everything together without hardcoding infrastructure choices.