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Open Source Rails Tools

Tools for developers
who ship alone

UI components and AI tools extracted from production Rails applications. No build pipelines. No framework fatigue. Built for the one-person framework philosophy.

Featured Product

Recuerd0

A dedicated knowledge base for managing the context your AI tools consume. Curate project knowledge once, serve it to every tool via REST API.

Works with Claude Code, Cursor, ChatGPT, and any tool that makes HTTP requests.

Recuerd0 — Versioned knowledge base for AI coding tools

Open Source

Production-tested tools

UI Library

Maquina Components

Modern UI components for Ruby on Rails. ERB partials styled with Tailwind CSS 4.0 and Stimulus controllers. Inspired by shadcn/ui, built for the Rails way.

AI Integration

Rails MCP Server

A Model Context Protocol server that lets LLMs interact with Rails projects. Analyze models, routes, schemas, and execute read-only Ruby code in your Rails context.

Claude Skill

Rails Upgrade Skill

A Claude Skill that helps upgrade Rails applications. Analyzes your codebase and generates migration guides for Rails 7.0 through 8.1.

Claude Skill

Rails Simplifier

A Claude Code skill for simplifying and refining Ruby on Rails code. Follows 37signals patterns and One Person Framework philosophy.

Philosophy

Practical tools, not perfect abstractions

Production First

Every tool starts in a real application. No theoretical exercises, no "what if" features. If it's here, it's been shipped.

Standard Rails

ERB partials, Tailwind CSS, Stimulus only where needed. No new paradigms to learn. The Rails way, refined.

One Person Scale

Built for developers who ship alone. Simple enough to understand, powerful enough to build real applications.

From the Blog

What we're building

Recuerd0 — source code now available on GitHub
February 21, 2026
The Recuerd0 source code is now on GitHub. Built with Rails 8, SQLite, and Hotwire — here's a look under the hood.
Mario Alberto Chávez Cárdenas
Recuerd0 launch — versioned knowledge base for AI coding tools
February 15, 2026
Versioned knowledge base for AI coding tools. Curate project context once, serve it via REST API to Claude Code, Cursor, and ChatGPT. SaaS or self-hosted.
Mario Alberto Chávez Cárdenas

Open Source

All projects

Project Links
Maquina Components

Modern UI components for Ruby on Rails. ERB partials styled with Tailwind CSS 4.0 and Stimulus controllers. Inspired by shadcn/ui, built for the Rails way.

Rails MCP Server

A Model Context Protocol server that lets LLMs interact with Rails projects. Analyze models, routes, schemas, and execute read-only Ruby code in your Rails context.

Neovim MCP Server

MCP server for Neovim integration. Read and update buffers, coordinate file changes across your editor and AI assistants.

Rails Upgrade Skill

A Claude Skill that helps upgrade Rails applications. Analyzes your codebase and generates migration guides for Rails 7.0 through 8.1.

Rails Simplifier

A Claude Code skill for simplifying and refining Ruby on Rails code. Follows 37signals patterns and One Person Framework philosophy.

Maquina UI Standards

A Claude Code skill for building consistent, accessible UIs in Rails using maquina_components. Enforces design patterns and accessibility standards.

Git Continuity

Seamlessly transfer work-in-progress between machines without committing to git history. Perfect for moving unfinished work between office and home.

Redis Menu

A macOS menu bar application for managing local Redis instances. Start, stop, and monitor Redis without touching the terminal.

Mongo Menu

A macOS menu bar application for managing local MongoDB instances. Simple controls for your development database.

Work Together

Need help with your Rails project?

I'm Mario Alberto Chávez—Rails architect available for consulting, architecture review, AI integration, and code review.