How to trigger polyfills on node_modules (deps) for library (as browser-ready ES / module)

[drschwabe]

After reading the docs and trying almost every combination I cannot seem to find the ritual necessary to get parcel to polyfill nodeJS api for my intended ES module (browser context) output.

{
  "name": "mymodule",
  "source": "my.js",
  "dependencies": {
    "some-module-requiring-buffer": "1.5.0",
  },
  "devDependencies": {
    "parcel": "^2.6.2",
  },
  "type" : "module", 
  "targets": {
    "module": {
      "includeNodeModules" : true, 
      "engines": {
        "browsers": "> 0.5%, last 2 versions, not dead"
      }
    }    
  }
} 

after running npx parcel build when I import the resulting dist/module I get an exception regarding 'buffer' (yet buffer should be polyfilled)

Am I missing something; why is the output build from this still having parts of it that are using non-polyfilled buffer?