OpenUI Forge — Ruby

Build generative UI apps with a React frontend + Ruby on Rails backend. Streams OpenAI API responses directly via ActionController::Live, forwarding OpenAI's native SSE with Net::HTTP.

Activation Triggers

• "openui ruby", "openui rails", "openui ruby backend"
• "generative ui ruby", "rails streaming ui backend"

Prerequisites

• Node.js >= 22 (24 LTS recommended) + React >= 18.3.1 (19+ recommended) (frontend)
• Ruby >= 3.2 + Rails 8.1.x (backend; run on Puma — ActionController::Live needs a threaded server, not WEBrick)
• OPENAI_API_KEY environment variable set

Quick Start