Create-llama is a command-line tool for generating full-stack LlamaIndex applications for Retrieval-Augmented Generation (RAG), supporting easy deployment across different backends such as Next.js serverless, Express, and Python. The tool simplifies the deployment process, particularly for a Next.js app, which can be quickly deployed to Vercel through a series of straightforward steps including generating the app, pushing it to a GitHub repository, importing the repository into Vercel, and configuring environment variables. For an Express backend with a Next.js frontend, deployment is managed via Render, involving steps like setting up a static frontend, pushing to GitHub, and adjusting configurations for successful publishing. The guide emphasizes the simplicity of deploying these applications, demonstrating how users can quickly bring their generated apps to production with minimal hassle.