Create a yprox-cli.config.js file:

module.exports = {
  assets: {
    app: './assets/app.js',

If you prefer, you can configure the tool with your package.json:

  "yproxCli": {
    "assets": {
      "app": "./assets/app.js"

But keep in mind that you can not use both config from yprox-cli.config.js and config from package.json at the same time.

Read more at Assets and Entries.

Configuring destination paths

To make your assets declaration easier, you can connfigure destination paths.

There is no limitation about them, you can define whatever your want. Since your configuration is passed to your assets, you will be able to use config.path.js or config.path.css vars.

// yprox-cli.config.js

module.exports = {
  // ...
  // Destination path
  path: {
    js: './public/js',
    css: './public/css',
    img: './public/img',
    plugins: './public/plugins',
    foo_bar: './public/foo-bar',