grain/vite.config.ts

import { defineConfig, loadEnv  } from 'vite'
import react from '@vitejs/plugin-react'
import tsconfigPaths from 'vite-tsconfig-paths'

// https://vitejs.dev/config/
export default ({mode }) => {
  process.env = {...process.env, ...loadEnv(mode, process.cwd())};

  return defineConfig({
    base: process.env.NODE_ENV == 'production' ? '/grain/' : '/',
    plugins: [react(), tsconfigPaths()],
  })
}