CommonJS module system support

[msipinski]

Hi, I know that ECMAScript Modules are the future, but for now I have a problem using ESM packages in my Electron.js project. I think that having a "hybrid" package is better!

If my understanding is correct, we can extract the code from index.js to a new file index.cjs with a CJS style module.exports = and in index.js leave only a ESM style wrapper: import defaultShell from './index.cjs' and export default defaultShell.

[sindresorhus]

I don't plan to do a hybrid package. It comes with more problems than it solves. You can either stay on the previous version or use a bundler like Webpack.

https://gist.github.com/sindresorhus/a39789f98801d908bbc7ff3ecc99d99c