Build LLM-backed Ruby applications with Ruby's Langchain.rb

An open source Rails 8+ engine built on `layered-ui-rails` that provides a multi-provider AI assistant with streaming responses and a full conversation UI.

Ruby library for interacting with various LLM providers including Anthropic, Google Gemini, xAI, and other OpenAI-compatible API providers (including local models). Supports streaming, event-handling, conversation management, tool-use, image input, and cost-tracking.