Not working)

[projct1]

Hello.
Tell me please, why my configuration is not working?

webpack.mix.js

let fs = require('fs'),
    mix = require('laravel-mix'),
    srcPath = 'resources/',
    publicPath = 'public_html/assets/',
    pathImg = 'images',
    pathFont = 'fonts';

mix.setPublicPath(publicPath).setResourceRoot('/assets/');

mix.copy(srcPath + pathFont, publicPath + pathFont).copy(srcPath + pathImg, publicPath + pathImg);

fs.readdir(__dirname, (err, files) => {
    files.forEach(file => {
        if (/\.mix\..*\.js/.test(file)) {
            require(__dirname + '/' + file);
        }
    });
});

webpack.mix.offsite.js

let mix = require('laravel-mix'),
    srcPath = 'resources/',
    publicPath = 'public_html/assets/';

mix.js(srcPath + 'js/offsite.js', publicPath + '/js/offsite/app.js')
    .sass(srcPath + 'scss/offsite/app.scss', publicPath + 'css/offsite')
    .extract()
    .version();

My dev command is node node_modules/cross-env/src/bin/cross-env.js NODE_ENV=development node_modules/webpack/bin/webpack.js --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js

Result of yarn dev is https://skr.sh/s5OUXkjNXkg (no one of other mix files are not processed).