* [@nestjs/event-emitter 12.0.0](https://github.com/nestjs/event-emitter) – Events module for the Nest framework built on EventEmitter2.

* [Watermill v1.5.3](https://github.com/ThreeDotsLabs/watermill) – Go library for efficiently working with message streams and building event-driven applications.

* [Trigger.dev v4.5.11](https://github.com/triggerdotdev/trigger.dev) – Platform and SDK for creating long-running background jobs with no timeouts and full observability.

* [Flexprice v2.1.26](https://github.com/flexprice/flexprice) – Usage metering and billing infrastructure designed for AI companies to streamline pricing models and track usage.

* [Watermill Kafka Pub/Sub v3.1.4](https://github.com/ThreeDotsLabs/watermill-kafka) – Kafka-based Pub/Sub implementation for the Watermill messaging library.