Stars
Keep coding agents working on a MacBook with the lid closed. Free menu bar app: no sleep, fan control by CPU temperature, screen lock, battery and heat cut-offs.
Open-source platform for creating safe, isolated production sandboxes for API, integration, and E2E testing.
Pure-Ruby, Phlex-style PDF documents: box layout, TrueType fonts, images. No Prawn, no Chrome.
Database anonymization and test data management
FPF (First Principles Framework) Library: methods and pattern languages for open-ended development and a shared culture of thinking and acting among people and AI agents. Use individual methods or …
A declarative read-query layer for ActiveRecord
Blazing fast HTML to PDF engine built on blitz and krilla
Fix race conditions on one record in Rails: ordered operations, expiring holds, and durable state in your existing SQL database. A SQL-backed virtual actor library.
The second generation of wkhtmltopdf and wicked_pdf
Drop-in replacement for Sidekiq + Pro + Enterprise. 100% API-compatible, free forever, fork-based multi-core swarm. Mountable Rails engine. AI-maintained by developerz.ai.
Multiple named cache stores for Rails, through Rails.cache(:name)
gem nosj is a very fast, json-gem-compatible JSON parser and generator for Ruby: Rust and SIMD via the first-party nosj crate, partial parsing via JSON Pointer, lazy documents that parse only what …
Talk to your Rails App from an AI agent using MCP
Browser automation CLI for AI agents
🤖 The one and only Claude Code Skill to Upgrade Rails by FastRuby.io -- Based on 60,000 dev/hours of experience upgrading Rails from 2.3 all the way to 8.1. Dual boot your Rails application and gra…
Record and view Rails ActionMailer emails sent in development
(TUI) Process manager for Procfile-based applications
A high-performance Ractor web server for Ruby 4.0+: Rack 3-based, with a Rust Tokio/Hyper front-end and Ractor-parallel Ruby workers and threaded fallback mode.
A very fast, feature-packed, AI-first Markdown (CommonMark/GFM) gem for Ruby, based on pulldown-cmark (Rust).
Embeddable Wasm sandbox for running untrusted mruby code from Ruby applications.
An HTML-first data grid for Stimulus.js (Hotwire).
PgQue – Zero-bloat Postgres queue built on top of on battle-proven Skype's PgQ. One SQL file to install, pg_cron to tick https://pgque.dev
Production-grade engineering skills for AI coding agents.
Docker image for building Crystal programs as fully static Linux (musl) binaries and cross-compiling to Windows x86_64 (MinGW).