* [uWebSockets.js v20.68.0](https://github.com/uNetworking/uWebSockets.js) – High-performance, standards compliant web server for demanding applications.

* [deepstream v10.1.0](https://github.com/deepstreamIO/deepstream.io) – Realtime server enabling high-speed data sync, messaging, and RPCs with authentication and permissions.

* [ntfy v2.23.0](https://github.com/binwiederhier/ntfy) – Simple HTTP-based pub-sub notification service for sending alerts to devices via scripts.

* [Watermill AMQP Pub/Sub v3.1.0](https://github.com/ThreeDotsLabs/watermill-amqp) – AMQP-based Pub/Sub adapter for Go message-stream libraries.

* [Node client for the Salesforce Pub/Sub API 5.6.0](https://github.com/pozil/pub-sub-api-node-client) – Node.js client library for interacting with Salesforce's gRPC-based Pub/Sub API.

* [iodine v0.7.59](https://github.com/boazsegev/iodine) – Fast concurrent Ruby web server with native WebSocket, EventSource, and Pub/Sub support, including C-backed performance optimizations.