runex is a Node.js utility that allows you to execute a module's exported `run` function directly from the command line using `npx runex` or `node -r runex`, eliminating the need for boilerplate code to handle argument parsing and execution. It's designed for developers who want to create command-line tools from their modules without cluttering them with execution logic, particularly useful for those who frequently create small scripts or utilities that need to be both importable and executable.