Require Hooks provides infrastructure for intercepting require/load calls in Ruby

A library for validating YAML documents against a schema

Catch unsafe PostgreSQL migrations in development and run them easier in production (code helpers for table/column renaming, changing column type, adding columns with default, background migrations…

PicoRuby is the smallest Ruby implementation for one-chip microcontrollers

🏔️ The AI-native RSS reader

JSON transformer with the power and speed of Ruby

A “minion” for Turbo-Frames and Streams. This custom element transitions elements as they enter or leave the DOM.

Find available time slots quickly with a materialized view.

📦 Packwerk-style modularity for Ruby using boxes

A YAML parser written in Ruby

A Unicode regular expression library written in Ruby

Kanban as it should be. Not as it has been.

A lightweight gem that provides IP address restrictions for Rails controllers at the action level.

Mutation testing for Ruby. AI writes your code. AI writes your tests. But who tests the tests?

SolidQueue systemd integration for Capistrano

minica is a small, simple CA intended for use in situations where the CA operator also operates each host where a certificate will be used.

A modern profiler for your Rails application

activemodel form object pattern. it embraces multiple AR models and provides a transparent interface as if they were a single model.

Enable a Rails application to have separate databases for each tenant.

tsumiki

Parallel test runner for rspec. Multi-process and multi-node.

Coding Agent Session Manager for Claude Code / Gemini CLI / Codex CLI / Cursor Agent / Copilot CLI / Cline CLI / OpenCode / Kimi CLI

Convert markdown to keynote

🚥 Traffic control for code.

Synchronize Capybara commands with application JavaScript and AJAX requests

deck is a tool for creating deck using Markdown and Google Slides.

Speed up your test suite and have easy to maintain seeds. Replace slow factories & skip the maintenance burden of fixtures. Fast tests, clear datasets.

🧪 Durable execution workflows for Active Job

Ruby gems for general-purpose AI agent systems: automation, research, data processing, customer support, content creation. SwarmSDK provides single-process orchestration, persistent memory with sem…