humus/build/web.webpack.config.js

const {copy} = require('@flecks/build/server');
const configFn = require('@flecks/web/build/web.webpack.config');

module.exports = async (env, argv, flecks) => {
  const config = await configFn(env, argv, flecks);
  config.plugins.push(
    copy({
      patterns: [
        {
          from: 'icon.png',
          to: 'assets/icon.png',
        },
      ],
    }),
  );
  return config;
};