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

* [Nakama v3.39.0](https://github.com/heroiclabs/nakama) – Distributed server for social and realtime games and applications.

* [Parabol v13.24.0](https://github.com/ParabolInc/parabol) – Open-source application for running agile meetings like retrospectives and Sprint Poker.

* [Supabase Realtime v2.103.0](https://github.com/supabase/realtime) – Server for broadcasting messages, tracking shared state, and listening to Postgres changes via WebSockets.

* [PocketBase v0.39.0](https://github.com/pocketbase/pocketbase) – Go backend with an embedded database, real-time subscriptions, user management, and a simple API.

* [Supabase v1.26.05](https://github.com/supabase/supabase) – Firebase-like platform using open source tools for building applications.

* [Thorium v4.7.0](https://github.com/Thorium-Sim/thorium) – Guided narrative multiplayer cooperative real-time spaceship bridge simulator emphasizing storytelling and crew collaboration.

* [H2O Wave v1.8.8](https://github.com/h2oai/wave) – Software stack for building low-latency, realtime, browser-based applications and dashboards in Python and R without HTML or JavaScript.

* [Figbird v0.23.0](https://github.com/humaans/figbird) – Realtime data management for React applications using Feathers.

* [RedwoodSDK v1.2.10](https://github.com/redwoodjs/sdk) – React framework for Cloudflare that provides SSR, server components, and realtime features.

* [Prostgles UI v2.3.1](https://github.com/prostgles/ui) – SQL editor and internal tool builder for Postgres.

* [Realtime BPM Analyzer v5.0.13](https://github.com/dlepaux/realtime-bpm-analyzer) – TypeScript library for real-time beat-per-minute detection from various audio sources using the Web Audio API.

* [Ably Pub/Sub Go SDK v1.4.1](https://github.com/ably/ably-go) – Go client library providing realtime pub-sub messaging, presence, message history, and push notifications.

* [Vibedgames vibedgames@0.0.4](https://github.com/kyh/vibedgames) – Personal AI game studio that provisions hosting, generates assets, and prompts features for shipping games.