As more and more dependencies are updating to ESM, I've figured it's time to bite the bullet and make my project ESM-ready as well.

But adding "type": "module" to my project's package.json leads to these two issues when running node build.js:

1.   import {build, cliopts} from "estrella";
             ^^^^^
     SyntaxError: Named export 'build' not found. The requested module 'estrella' is a CommonJS module, which may not support all module.exports as named exports.
     CommonJS modules can always be imported via the default export, for example using:
     
     import pkg from 'estrella';
     const {build, cliopts} = pkg;
   

   the proposed workaround works though.

2. TypeError: Cannot read properties of undefined (reading 'filename')
   this is due to this code:

   estrella/src/util.js

   Line 27 in e5b985b

   export const isCLI = module.id == "." || process.mainModule.filename == __filename

   process.mainModule does not seem to exist in ESM.