* [NATS: Pure Ruby Client v2.7.0](https://github.com/nats-io/nats-pure.rb) – Pure Ruby, thread-safe client for the NATS messaging system, supporting subscriptions, publishing, requests, and JetStream consumption. * [Bifrost v0.57.27](https://github.com/s4wave/spacewave) – Peer-to-peer communications engine offering pluggable transports, multiplexed streams, encryption, meshing, and PubSub.