Hi, you made a good job. I've found a problem with create-react-app and i hope you help me)
When i try use argon2-browser with my app, which was initialised from create-react-app. So that create-react-app has a only hide webpack config, i've used react-app-rewired to customise it config. Problems: usage process: false dont allowed in create-react-app, because some packadges depend from it, and also i common use the process to acces env variables. If add your suggested config(without process redefining), i have a error __webpack_public_path__ is not defined. Example of problem create-react-app's project bellow
package.json:

{
  "name": "myapp",
  "version": "0.1.0",
  "private": true,
  "dependencies": {
    "@testing-library/jest-dom": "^4.2.4",
    "@testing-library/react": "^9.4.0",
    "@testing-library/user-event": "^7.2.1",
    "argon2-browser": "^1.12.0",
    "react": "^16.12.0",
    "react-app-rewired": "^2.1.5",
    "react-dom": "^16.12.0",
    "react-scripts": "3.3.0"
  },
  "scripts": {
    "start": "react-app-rewired start"
  },
  "eslintConfig": {
    "extends": "react-app"
  },
  "devDependencies": {
    "base64-loader": "^1.0.0"
  }
}

config-overrides.js:

 module.exports = {
  webpack: function(config, env) {
    config.module = {
      ...config.module,
      noParse: [/\.wasm$/],
      rules: [
        ...config.module.rules,
        {
          test: /\.wasm$/,
          type: 'javascript/auto',
          loaders: ['base64-loader']
        }
      ]
    }
    config.node = {
      ...config.node,
      __dirname: false,
      fs: 'empty',
      Buffer: false,
    };
    return config
  }
}

usage:

import React from 'react';
import ReactDOM from 'react-dom';
const argon2 = require('argon2-browser')

argon2.hash({ pass: 'password', salt: 'somesalt' })
    .then(h => console.log(h.hash, h.hashHex, h.encoded))
    .catch(e => console.error(e.message, e.code))

ReactDOM.render(
Hello
, document.getElementById('root'));

Thanks in advance