create-llama is the simplest way to start using LlamaIndex! It's a straightforward command-line tool that generates a complete application based on your requirements - just supply your data and you're ready to go! To begin, run: npx create-llama. The app will ask you a series of questions to understand what you want to create. You'll need to provide your OpenAI API key and make some decisions. The generated application includes a data folder where you can place as many files as you like; it will automatically index them during build time and then you can chat with them quickly. You can choose from various frontend and backend options. Once your app is up and running, you can customize it according to your preferences!