Supporting multiple Javascript environments

The author developed a utility targeting both Node.js and browser environments and chose Babel for transpilation. While acknowledging Babel's complexity and configuration challenges, the author highlights its ability to balance modern ECMAScript features with backward compatibility. The project aims to write source code using ES Modules and compile it down to CommonJS for Node.js. The build process involves nested npm run scripts and bash commands to prepare separate distributables for the browser and Node.js. The browser build uses a browserslist query to determine which browser features to support. The Node.js build targets v20, transpiling to CommonJS with an additional script for ES Module support. The final output includes a browser-targeted script in the lib/ directory and a Node.js targeted script in the dist/ directory. The author emphasizes that this setup is based on personal experimentation, not necessarily best practices. The author encourages readers to conduct their own research to determine the optimal solution for their specific needs.