Substance Bundler

Substance Bundler is a custom JavaScript bundling and build orchestration library, currently at version `0.27.4`. It offers a high-level, shell-script-like approach to defining build processes, distinguishing itself from traditional task runners like Gulp or Grunt by emphasizing simplicity and direct action execution. The library internally leverages `chokidar` for robust file watching, ensuring all defined operations automatically react to source file changes. While not a bundler itself, it seamlessly integrates with popular tools such as Webpack, Rollup, and PostCSS via dedicated extensions, acting as an orchestrator for these underlying technologies. This allows developers to define complex build pipelines, including copying files, removing directories, and executing custom scripts, all within a unified task-based system with inter-task dependencies. Its primary differentiator lies in its low-ceremony API for defining build steps and its integrated watch mode across all tasks, offering a streamlined development experience for projects that require custom but maintainable build logic.