Directory-based Module Auto-Loader

requireindex is a utility for Node.js CommonJS environments that simplifies the creation of `index.js` files by automatically requiring and exporting sibling modules within a directory. It aggregates modules into a single object, with keys corresponding to file basenames. It supports nested directories, allows explicit file inclusion, and respects a convention for private modules (prefixing with an underscore). The current stable version is 1.2.0, which was last published over 8 years ago, indicating the package is no longer actively maintained. It offers a concise alternative to manually writing multiple `require()` statements for structuring CommonJS projects, though its relevance has diminished with the widespread adoption of ES Modules.