diff --git a/apps/nextjs/src/common/utils/helpers.ts b/apps/nextjs/src/common/utils/helpers.ts
index ebfe55f..dde6632 100644
--- a/apps/nextjs/src/common/utils/helpers.ts
+++ b/apps/nextjs/src/common/utils/helpers.ts
@@ -1,8 +1,10 @@
 /**
- * isNullOrUndefined
- * @description - validate if an element is null or undefined
+ * isNullOrUndefined.
+ *
+ * - validate if an element is null or undefined.
+ *
  * @function
- * @param {any} value - Element to validate
- * @return {boolean} Element is null or undefined.
+ * @param {any} value - Element to validate.
+ * @returns {boolean} Element is null or undefined.
  */
-export const isNullOrUndefined = (value: any): boolean => value === undefined || value === null;
+export const isNullOrUndefined = (value: unknown): boolean => value === undefined || value === null;
diff --git a/apps/nextjs/src/pages/auth/signin.tsx b/apps/nextjs/src/pages/auth/signin.tsx
index 6f01ffa..8db2ecc 100644
--- a/apps/nextjs/src/pages/auth/signin.tsx
+++ b/apps/nextjs/src/pages/auth/signin.tsx
@@ -7,7 +7,7 @@ const Signin: NextPage = () => {
       <div className="relative flex flex-col items-center justify-center rounded-lg bg-slate-800 p-10">
         <button
           className="relative flex min-w-fit items-center justify-center overflow-hidden whitespace-nowrap rounded-lg bg-primary-200/20 px-4 py-2 text-center text-sm font-semibold text-primary-50 transition duration-100 ease-out hover:bg-primary-200/30"
-          onClick={() => signIn('twitter')}
+          onClick={() => void signIn('twitter')}
         >
           Log in with Twitter
         </button>
diff --git a/apps/nextjs/src/pages/index.tsx b/apps/nextjs/src/pages/index.tsx
index a78613e..1a9325e 100644
--- a/apps/nextjs/src/pages/index.tsx
+++ b/apps/nextjs/src/pages/index.tsx
@@ -1,9 +1,9 @@
 import type { NextPage } from 'next';
 import Head from 'next/head';
 import Link from 'next/link';
+import { Icon, IconCatalog } from '~/components';
 import { signIn, useSession } from 'next-auth/react';
 import { Button, ButtonSize, ButtonVariant } from 'side-ui';
-import { Icon, IconCatalog } from '~/components';
 
 const Home: NextPage = () => {
   const { data: sessionData } = useSession();
@@ -18,26 +18,17 @@ const Home: NextPage = () => {
       <main className="relative flex h-screen w-full flex-none flex-col items-center justify-center gap-10 overflow-hidden bg-slate-900 p-10">
         <div className="relative flex h-min w-min flex-none flex-col flex-wrap items-center justify-center gap-4 overflow-hidden p-0">
           <div className="mb-2 flex flex-row items-center gap-4 text-white">
-            <a
-              className="text-2xl font-semibold text-secondary-300 transition hover:opacity-80"
-              href="/"
-            >
+            <a className="text-2xl font-semibold text-secondary-300 transition hover:opacity-80" href="/">
               Side Project Starter Kit
             </a>
           </div>
           <div className="mb-4 w-96">
-            <h1 className="text-center text-3xl font-bold text-slate-50">
-              This is a starter kit template
-            </h1>
+            <h1 className="text-center text-3xl font-bold text-slate-50">This is a starter kit template</h1>
           </div>
           {sessionData ? (
             <p className="text-lg text-white">{sessionData.user.name}</p>
           ) : (
-            <Button
-              variant={ButtonVariant.secondary}
-              size={ButtonSize.sm}
-              onClick={() => signIn('twitter')}
-            >
+            <Button variant={ButtonVariant.secondary} size={ButtonSize.sm} onClick={() => void signIn('twitter')}>
               Log in with Twitter
             </Button>
           )}