Experimental gui.

experimental/app/vitest.config.ts

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+/// <reference types="vitest" />
+import { defineConfig } from 'vite';
+import react from '@vitejs/plugin-react';
+import { resolve } from 'path';
+import { fileURLToPath, URL } from 'node:url';
+
+export default defineConfig({
+  plugins: [react()],
+  resolve: {
+    alias: {
+      "@": fileURLToPath(new URL('./src', import.meta.url)),
+    },
+  },
+  test: {
+    globals: true,
+    environment: 'jsdom',
+    setupFiles: ['./src/test/setup.ts'],
+    css: true,
+    include: ['src/**/*.{test,spec}.{js,mjs,cjs,ts,mts,cts,jsx,tsx}'],
+  },
+});