CommonJS support

[CodyJasonBennett]

Although Node has modules support, many modern build processes still rely on CJS exports.

Maybe support multiple environments with something like rollup:

// rollup.config.js
[
  {
    input: `./index.js`,
    output: { file: `dist/index.js`, format: 'esm' }
  },
  {
    input: `./index.js`,
    output: { file: `dist/index.cjs`, format: 'cjs' }
    ]
  }
]

// package.json
{
  "main": "dist/index.cjs",
  "module": "dist/index.js"
}

[lifthrasiir]

I've added support for CommonJS compatibility in 3407609. Could you please check if it works for your use case? Thank you!

[CodyJasonBennett]

It does but why is the engine in package.json so high?

[lifthrasiir]

Because I haven't tested with other versions of Node.js. (14 in the README is my guess and might not work.) Fixing that is another job to do and I've got so many things to do first... Anyway I'm glad that it works!