Could not resolve "path", could not resolve "os"

When trying to build a react project doing: ` npm run build-dev`
I get a lot of **Could not resolve "path"** **Could not resolve "os"** **Could not resolve "crypto"**

And of course the build fails. I'm building for the browser.

I have to note I'm using this plugin:

`const envFilePlugin = require('esbuild-envfile-plugin');`


Start by reproducing the browser build with `npm run build-dev` and the `esbuild-envfile-plugin`, then inspect how the plugin introduces `path`, `os`, and `crypto`. Done means identifying whether the unresolved modules come from esbuild or the plugin and documenting or fixing the browser-build behavior.

Written by the indexing model from the issue text.