Automated code reviews via mutation testing - semantic code coverage.

A modern profiler for your Rails application

Convert markdown to keynote

🚥 Traffic control for code.

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

Fast tests, clear datasets. Ditch nightmare fixtures and slow confusing factories.

🧪 Durable execution workflows for Active Job

A GitHub CLI extension to easily add co-authors to your latest commit.

Tutorial to write a Ruby JIT

Simple.css is a CSS template that allows you to make a good looking website really quickly.

Enable YJIT

Detect non-atomic interactions within DB transactions

A PDF generator for Rails using Ferrum & headless Chrome

A pure Rails authentication system like Devise.

Terraform modules for rapidly building production-grade Kubernetes clusters following SRE practices.

An incremental parsing system for programming tools

Launch [debugger](https://github.com/ruby/debug) if spec is failed.

dev tools, env vars, task runner

A toolkit to upgrade your next Rails application

Alba is a JSON serializer for Ruby, JRuby and TruffleRuby.

code complexity metrics visualization and exploration tool for ruby and javascript

OmniAuth strategy for authenticating with Twitter OAuth2

Ruby wrapper for the comrak (CommonMark parser) Rust crate

all-gem runs various versions of command provided by gem.

Headless Chrome Ruby API

Yet Another N+1 COUNT Query Killer for ActiveRecord

A High Performance HTTP Server for Ruby

Simple tool to maintain factories and traits from FactoryBot