Phase 1+2: Nx workspace with apps, libs, and module boundaries

apps/overlay-e2e/eslint.config.mjs

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+import playwright from 'eslint-plugin-playwright';
+import baseConfig from '../../eslint.config.mjs';
+
+export default [
+  playwright.configs['flat/recommended'],
+  ...baseConfig,
+  {
+    files: ['**/*.ts', '**/*.js'],
+    // Override or add rules here
+    rules: {},
+  },
+];

apps/overlay-e2e/playwright.config.ts

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+import { defineConfig, devices } from '@playwright/test';
+import { nxE2EPreset } from '@nx/playwright/preset';
+import { workspaceRoot } from '@nx/devkit';
+
+// For CI, you may want to set BASE_URL to the deployed application.
+const baseURL = process.env['BASE_URL'] || 'http://localhost:4200';
+
+/**
+ * Read environment variables from file.
+ * https://github.com/motdotla/dotenv
+ */
+// require('dotenv').config();
+
+/**
+ * See https://playwright.dev/docs/test-configuration.
+ */
+export default defineConfig({
+  ...nxE2EPreset(__filename, { testDir: './src' }),
+  /* Shared settings for all the projects below. See https://playwright.dev/docs/api/class-testoptions. */
+  use: {
+    baseURL,
+    /* Collect trace when retrying the failed test. See https://playwright.dev/docs/trace-viewer */
+    trace: 'on-first-retry',
+  },
+  /* Run your local dev server before starting the tests */
+  webServer: {
+    command: 'pnpm exec nx run overlay:serve',
+    url: 'http://localhost:4200',
+    reuseExistingServer: true,
+    cwd: workspaceRoot,
+  },
+  projects: [
+    {
+      name: 'chromium',
+      use: { ...devices['Desktop Chrome'] },
+    },
+
+    {
+      name: 'firefox',
+      use: { ...devices['Desktop Firefox'] },
+    },
+
+    {
+      name: 'webkit',
+      use: { ...devices['Desktop Safari'] },
+    },
+
+    // Uncomment for mobile browsers support
+    /* {
+      name: 'Mobile Chrome',
+      use: { ...devices['Pixel 5'] },
+    },
+    {
+      name: 'Mobile Safari',
+      use: { ...devices['iPhone 12'] },
+    }, */
+
+    // Uncomment for branded browsers
+    /* {
+      name: 'Microsoft Edge',
+      use: { ...devices['Desktop Edge'], channel: 'msedge' },
+    },
+    {
+      name: 'Google Chrome',
+      use: { ...devices['Desktop Chrome'], channel: 'chrome' },
+    } */
+  ],
+});

apps/overlay-e2e/project.json

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+{
+  "name": "overlay-e2e",
+  "$schema": "../../node_modules/nx/schemas/project-schema.json",
+  "projectType": "application",
+  "sourceRoot": "apps/overlay-e2e/src",
+  "implicitDependencies": ["overlay"],
+  "// targets": "to see all targets run: nx show project overlay-e2e --web",
+  "targets": {}
+}

apps/overlay-e2e/src/example.spec.ts

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+import { test, expect } from '@playwright/test';
+
+test('has title', async ({ page }) => {
+  await page.goto('/');
+
+  // Expect h1 to contain a substring.
+  expect(await page.locator('h1').innerText()).toContain('Welcome');
+});

apps/overlay-e2e/tsconfig.json

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+{
+  "extends": "../../tsconfig.base.json",
+  "compilerOptions": {
+    "allowJs": true,
+    "outDir": "../../dist/out-tsc",
+    "sourceMap": false,
+    "module": "commonjs",
+    "strict": true,
+    "noImplicitOverride": true,
+    "noPropertyAccessFromIndexSignature": true,
+    "noImplicitReturns": true,
+    "noFallthroughCasesInSwitch": true
+  },
+  "include": [
+    "**/*.ts",
+    "**/*.js",
+    "playwright.config.ts",
+    "src/**/*.spec.ts",
+    "src/**/*.spec.js",
+    "src/**/*.test.ts",
+    "src/**/*.test.js",
+    "src/**/*.d.ts"
+  ]
+}