Deglob is a Node.js utility that takes glob patterns and returns an array of matching file paths, while respecting `.gitignore` rules and optional ignore patterns defined in `package.json`. It's designed for developers who need to programmatically find files in a project while honoring common ignore conventions. The tool is particularly useful for build tools, linters, or any script that needs to process files in a way that aligns with a project's ignore settings.