asbundle: Minimalistic CommonJS Bundler

asbundle (current stable version 2.7.0) is a focused JavaScript bundler designed to convert single ES Module or CommonJS source files into a lightweight, optimized CommonJS bundle, primarily for browser environments. It serves as a companion to `ascjs` and utilizes `babylon` for parsing, automatically transforming ES2015+ modules into CommonJS when necessary. Its core differentiators include its minimalistic design, aiming for simplicity over feature breadth, and its ability to produce small, minifier-friendly bundles that do not rely on a global `require` or runtime dependency resolution. It prioritizes compatibility with downstream tools like Babel and UglifyJS, supports both relative file paths and `node_modules` package resolution, and reproduces a modern CommonJS environment ideal for web browsers. It explicitly avoids replacing comprehensive bundlers like Webpack or Rollup, focusing solely on `import`/`export` transpilation. The package was last published 5 years ago, suggesting a maintenance or stable status with infrequent updates.