Create-twilio-function is a project generator that makes it easy to start and develop Twilio Functions projects locally. It uses twilio-run, a serverless platform for running Node.js, and can be used to create new projects with just one command, asking for credentials or using stored environment variables. The generated project structure includes a .env file, gitignore, nvmrc, assets directory, functions directory, node_modules, package-lock.json, and package.json. A start script is defined in the package.json to run twilio-run --env, allowing users to test their Functions locally with just one command. The tool also provides an example function to get started, and is currently being worked on to include API for deployment to Twilio.