build: 📦 migrate to eslint flat

apps/cookbook/eslint.config.js

@@ -0,0 +1,12 @@
+const nx = require('@nx/eslint-plugin');
+const baseConfig = require('../../eslint.config.js');
+
+module.exports = [
+  ...baseConfig,
+  ...nx.configs['flat/react'],
+  {
+    files: ['**/*.ts', '**/*.tsx', '**/*.js', '**/*.jsx'],
+    // Override or add rules here
+    rules: {},
+  },
+];

eslint.config.js

@@ -0,0 +1,33 @@
+const nx = require('@nx/eslint-plugin');
+
+module.exports = [
+  ...nx.configs['flat/base'],
+  ...nx.configs['flat/typescript'],
+  ...nx.configs['flat/javascript'],
+  {
+    ignores: ['**/dist'],
+  },
+  {
+    files: ['**/*.ts', '**/*.tsx', '**/*.js', '**/*.jsx'],
+    rules: {
+      '@nx/enforce-module-boundaries': [
+        'error',
+        {
+          enforceBuildableLibDependency: true,
+          allow: ['^.*/eslint(\\.base)?\\.config\\.[cm]?js$'],
+          depConstraints: [
+            {
+              sourceTag: '*',
+              onlyDependOnLibsWithTags: ['*'],
+            },
+          ],
+        },
+      ],
+    },
+  },
+  {
+    files: ['**/*.ts', '**/*.tsx', '**/*.js', '**/*.jsx'],
+    // Override or add rules here
+    rules: {},
+  },
+];

nx.json

@@ -18,7 +18,8 @@
     "production": [
       "default",
       "!{projectRoot}/**/?(*.)+(spec|test).[jt]s?(x)?(.snap)",
-      "!{projectRoot}/tsconfig.spec.json"
+      "!{projectRoot}/tsconfig.spec.json",
+      "!{projectRoot}/eslint.config.js"
     ]
   },
   "defaultBase": "main",

package.json

@@ -18,6 +18,8 @@
     "@docusaurus/module-type-aliases": "3.6.3",
     "@docusaurus/tsconfig": "3.6.3",
     "@docusaurus/types": "3.6.3",
+    "@eslint/eslintrc": "3.2.0",
+    "@eslint/js": "9.16.0",
     "@nx/eslint": "19.8.9",
     "@nx/eslint-plugin": "19.8.9",
     "@nx/react": "19.8.9",
@@ -26,21 +28,22 @@
     "@nx/workspace": "19.8.9",
     "@testing-library/jest-dom": "6.4.2",
     "@testing-library/react": "15.0.6",
-    "@typescript-eslint/eslint-plugin": "7.18.0",
-    "@typescript-eslint/parser": "7.18.0",
+    "@typescript-eslint/eslint-plugin": "8.17.0",
+    "@typescript-eslint/parser": "8.17.0",
     "@vitest/ui": "1.4.0",
-    "eslint": "8.57.0",
+    "eslint": "9.16.0",
     "eslint-config-prettier": "9.1.0",
     "eslint-plugin-import": "2.31.0",
-    "eslint-plugin-jsx-a11y": "6.10.1",
-    "eslint-plugin-react": "7.34.1",
-    "eslint-plugin-react-hooks": "5.0.0",
+    "eslint-plugin-jsx-a11y": "6.10.2",
+    "eslint-plugin-react": "7.37.2",
+    "eslint-plugin-react-hooks": "5.1.0",
     "firebase-tools": "13.10.2",
     "jsdom": "24.0.0",
     "nx": "19.8.9",
     "nx-cloud": "19.1.0",
     "prettier": "3.2.5",
     "typescript": "5.5.4",
+    "typescript-eslint": "8.17.0",
     "vite": "5.2.8",
     "vitest": "1.4.0"
   },