diff --git a/examples/nextjs-app/.eslintrc.json b/examples/nextjs-app/.eslintrc.json
index 13db79fd..9f1fbaa4 100644
--- a/examples/nextjs-app/.eslintrc.json
+++ b/examples/nextjs-app/.eslintrc.json
@@ -3,7 +3,7 @@
     "browser": true,
     "es2021": true
   },
-  "extends": ["plugin:react/recommended", "airbnb-typescript/base", "plugin:prettier/recommended", "prettier"],
+  "extends": ["prettier", "airbnb-typescript/base", "plugin:prettier/recommended", "prettier"],
   "parser": "@typescript-eslint/parser",
   "parserOptions": {
     "ecmaFeatures": {
@@ -13,7 +13,7 @@
     "sourceType": "module",
     "project": ["./tsconfig.json"]
   },
-  "plugins": ["prettier", "react", "@typescript-eslint"],
+  "plugins": ["prettier", "react", "@typescript-eslint", "import"],
   "settings": {
     "import/resolver": {
       "node": {
@@ -33,11 +33,13 @@
         "tsx": "never"
       }
     ],
+    "prettier/prettier": "error",
     "react/jsx-filename-extension": [2, { "extensions": [".js", ".jsx", ".ts", ".tsx"] }],
     "react/button-has-type": 0,
     "no-console": 0,
     "import/prefer-default-export": 0,
     "react/prop-types": 0,
+    "import/no-extraneous-dependencies": "error",
     "no-use-before-define": 0,
     "promise/always-return": 0,
     "react/forbid-prop-types": 0,
diff --git a/examples/nextjs-app/.gitignore b/examples/nextjs-app/.gitignore
index 1437c53f..1227ed22 100644
--- a/examples/nextjs-app/.gitignore
+++ b/examples/nextjs-app/.gitignore
@@ -1,7 +1,4 @@
-# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
-
-# dependencies
-/node_modules
+# .gitignore
 /.pnp
 .pnp.js
 
@@ -9,7 +6,7 @@
 /coverage
 
 # next.js
-/.next/
+/.next/  # Remove this line if present
 /out/
 
 # production
@@ -28,7 +25,4 @@ yarn-error.log*
 .env.local
 .env.development.local
 .env.test.local
-.env.production.local
-
-# vercel
-.vercel
+.env.production.local
\ No newline at end of file
diff --git a/examples/nextjs-app/lib/constants.ts b/examples/nextjs-app/lib/constants.ts
index d68c68f8..c153834c 100644
--- a/examples/nextjs-app/lib/constants.ts
+++ b/examples/nextjs-app/lib/constants.ts
@@ -54,7 +54,7 @@ export const verifierMap = {
   [TELEGRAM]: {
     name: "Telegram",
     typeOfLogin: "telegram",
-    clientId: "7974448012:AAGLN8ee4WnJhJt6Jc7_Sb275smMs-8K00I",
+    clientId: "7974448012",
     verifier: "test-telegram-2",
   },
   [EMAIL_PASSWORD]: {
diff --git a/examples/nextjs-app/package.json b/examples/nextjs-app/package.json
index 6a816c6e..781ee54c 100644
--- a/examples/nextjs-app/package.json
+++ b/examples/nextjs-app/package.json
@@ -6,7 +6,8 @@
     "dev": "next dev",
     "build": "next build",
     "start": "next start",
-    "prepare": "husky"
+    "prepare": "husky",
+    "lint": "eslint --fix ."
   },
   "dependencies": {
     "@toruslabs/customauth": "file:../..",
@@ -21,6 +22,11 @@
     "@types/react": "^18",
     "@types/react-dom": "^18",
     "eslint": "^9.18.0",
+    "eslint-config-airbnb-typescript": "^18.0.0",
+    "eslint-config-prettier": "^10.0.1",
+    "eslint-plugin-import": "^2.31.0",
+    "eslint-plugin-prettier": "^5.2.3",
+    "eslint-plugin-react": "^7.37.4",
     "husky": "^9.1.6",
     "lint-staged": "^15.2.10",
     "prettier": "^3.3.3",
diff --git a/examples/nextjs-app/vercel.json b/examples/nextjs-app/vercel.json
new file mode 100644
index 00000000..b959c394
--- /dev/null
+++ b/examples/nextjs-app/vercel.json
@@ -0,0 +1,15 @@
+{
+  "version": 2,
+  "builds": [
+    {
+      "src": "next.config.js",
+      "use": "@vercel/next"
+    }
+  ],
+  "routes": [
+    {
+      "src": "/serviceworker",
+      "dest": "/serviceworker/redirect.html"
+    }
+  ]
+}
\ No newline at end of file