An array `package.json#source` should build these specified entries.

Running parcel build my-package/ should build a.html, b.html if my-package/package.json contains:

{
  "source": ["a.html", "b.html"]
}

So be equivalent to cd my-package && parcel build a.html b.html.

The docs already say this should work: https://v2.parceljs.org/configuration/package-json/#source

Relevant code: https://github.com/parcel-bundler/parcel/blob/064ba0a166ea63ccd2b623dc11324d4cd7ffb526/packages/core/core/src/requests/EntryRequest.js#L98-L126

[AceTheCreator]

@mischnic I’d love to pick this issue up.

[mischnic]

You can also work on something else even before you PR is merged, if you want.