The osprey web-server. Super light weight, a little bit fluttery.

Core functionality for Pakyow

This gem provides a dedicated async HTTP processor that uses Ruby's Fiber scheduler for non-blocking I/O. Application threads hand off HTTP requests to the processor and return immediately. The processor handles hundreds of concurrent HTTP connections using fibers, then notifies the application when responses arrive via a pluggable callback mechanism. This design keeps application threads free to do other work while HTTP requests are in flight.

Run several programs at once, control them and watch the logs

A driver-adjacent Ruby control-plane over ruby-pg/libpq. It multiplexes independent, session-neutral extended-protocol operations from many Async fibers onto a small number of PostgreSQL connections while keeping explicit transactions and session-changing work on exclusive pinned connections. Control-plane only: all wire work stays in libpq. Zero lines of C.

Ruby client for `@earendil-works/pi-coding-agent`. Spawns the pi CLI in RPC mode and speaks its JSONL protocol from Ruby. Designed for building interactive agent UIs (web, TUI) on top of pi. Not officially maintained by the pi project.

A simple Ruby command-line tool for dropping in an AI buddy to your podcast.

Prosody offers Ruby bindings to the Prosody Kafka client, providing features for message production and consumption, including configurable retry mechanisms, failure handling strategies, and integrated OpenTelemetry support for distributed tracing.

Protocol abstractions for gRPC, built on top of protocol-http.

Puppeteer-BiDi is a Ruby implementation of Puppeteer that uses the WebDriver BiDi protocol to automate Firefox browsers. Unlike puppeteer-ruby which uses Chrome DevTools Protocol (CDP), this gem focuses on BiDi protocol support for cross-browser automation, particularly targeting Firefox.

Qravan simple API server for data requests.

Experimental alpha Ruby bindings (native extension) for the quietquic Rust crate.

A concurrent DNS server built on Ractors with a simple and expressive API to integrate into your projects.

A lock-free MPMC queue that can be shared across Ruby Ractors — the only Ractor-safe bounded queue option since Ruby's built-in Queue uses Mutex and cannot cross Ractor boundaries.

A CLI tool to scan websites on a specific IP range

A native-Ruby port of Vercel's portless. Run your dev server through a local reverse proxy and reach it at https://<name>.localhost instead of a port — HTTPS by default, with an on-demand local CA, per-host certs, and a random backend port so you never collide on 3000/3001 again. Framework-agnostic; first-class with Rails.

https://github.com/zedbydade/ruby-map-reduce/blob/master/README.md

A dry-cli binary plus a periodic launchd sync sweep that keeps every tracked repo (and whole GitHub orgs!) clean, on its default branch, and up to date — so anything downstream can clone from local disk instantly. macOS-only, GitHub-only (behind decoupled SCM/forge interfaces). Never destroys your work: dirty or diverged repos are reported, never touched. ヽ(•‿•)ノ✨

Build resilient applications with distributed durable async/await using Restate

RobotLab is a Ruby framework for building and orchestrating multi-robot LLM workflows. Built on ruby_llm, it provides robots with template-based prompts, tools, and shared memory; networks for coordinating multiple robots with intelligent routing; MCP (Model Context Protocol) integration for external tool servers; and a memory system with Redis backend and semantic caching. Optional gems add Rails integration (robot_lab-rails), durable learning (robot_lab-durable), Ractor concurrency (robot_lab-ractor), and document storage (robot_lab-document_store).