helix/vite.config.js

import { defineConfig } from 'vite';
import react from '@vitejs/plugin-react';

export default defineConfig({
  plugins: [react()],
  build: {
    outDir: 'build',
    emptyOutDir: true,
    rollupOptions: {
      input: 'src/App.jsx',
      output: {
        entryFileNames: 'index.js'
      }
    }
  }
});