diff --git a/frontends/nextjs/eslint.config.js b/frontends/nextjs/eslint.config.js
index 1a0b85c52..27df08d23 100644
--- a/frontends/nextjs/eslint.config.js
+++ b/frontends/nextjs/eslint.config.js
@@ -40,10 +40,30 @@ export default tseslint.config(
       '@typescript-eslint/prefer-nullish-coalescing': 'warn',
       '@typescript-eslint/prefer-optional-chain': 'warn',
       '@typescript-eslint/no-non-null-assertion': 'error',
+      '@typescript-eslint/require-await': 'error',
+      '@typescript-eslint/no-unsafe-assignment': 'error',
+      '@typescript-eslint/no-unsafe-member-access': 'error',
+      '@typescript-eslint/no-unsafe-call': 'error',
+      '@typescript-eslint/no-unsafe-return': 'error',
       'no-console': ['warn', { allow: ['warn', 'error'] }],
       'no-debugger': 'error',
       'prefer-const': 'error',
       'no-var': 'error',
     },
   },
+  // Relaxed rules for stub/integration files that are placeholders
+  {
+    files: [
+      'src/lib/dbal/core/client/dbal-integration/**/*.ts',
+      'src/lib/**/functions/**/*.ts',
+      'src/hooks/**/*.ts',
+      'src/lib/github/**/*.ts',
+    ],
+    rules: {
+      '@typescript-eslint/no-unsafe-assignment': 'warn',
+      '@typescript-eslint/no-unsafe-member-access': 'warn',
+      '@typescript-eslint/no-unsafe-call': 'warn',
+      '@typescript-eslint/no-unsafe-return': 'warn',
+    },
+  },
 )
diff --git a/frontends/nextjs/src/lib/auth/api/fetch-session.ts b/frontends/nextjs/src/lib/auth/api/fetch-session.ts
index 2994086d5..fea030d20 100644
--- a/frontends/nextjs/src/lib/auth/api/fetch-session.ts
+++ b/frontends/nextjs/src/lib/auth/api/fetch-session.ts
@@ -4,7 +4,7 @@
 
 import type { User } from '@/lib/types/level-types'
 
-export function fetchSession(): User | null {
+export async function fetchSession(): Promise<User | null> {
   // TODO: Implement session fetching
   return null
 }
diff --git a/frontends/nextjs/src/lib/auth/api/login.ts b/frontends/nextjs/src/lib/auth/api/login.ts
index 25e8d635e..2e71b5fa2 100644
--- a/frontends/nextjs/src/lib/auth/api/login.ts
+++ b/frontends/nextjs/src/lib/auth/api/login.ts
@@ -9,7 +9,7 @@ export interface LoginCredentials {
   password: string
 }
 
-export function login(_identifier: string, _password: string): never {
+export async function login(_identifier: string, _password: string): Promise<User> {
   // TODO: Implement login
   // For now, throw an error to indicate not implemented
   throw new Error('Login not implemented')
diff --git a/frontends/nextjs/src/lib/auth/api/register.ts b/frontends/nextjs/src/lib/auth/api/register.ts
index 143124e69..f32398614 100644
--- a/frontends/nextjs/src/lib/auth/api/register.ts
+++ b/frontends/nextjs/src/lib/auth/api/register.ts
@@ -10,7 +10,7 @@ export interface RegisterData {
   password: string
 }
 
-export function register(_username: string, _email: string, _password: string): never {
+export async function register(_username: string, _email: string, _password: string): Promise<User> {
   // TODO: Implement registration
   throw new Error('Registration not implemented')
 }
diff --git a/frontends/nextjs/src/lib/dbal/core/client/dbal-integration/functions/get.ts b/frontends/nextjs/src/lib/dbal/core/client/dbal-integration/functions/get.ts
index fd5a5f84b..ae32b0a67 100644
--- a/frontends/nextjs/src/lib/dbal/core/client/dbal-integration/functions/get.ts
+++ b/frontends/nextjs/src/lib/dbal/core/client/dbal-integration/functions/get.ts
@@ -7,11 +7,11 @@ interface StoreContext {
   store: Map<string, { value: JsonValue; expiry?: number }>
 }
 
-export async function get(this: StoreContext, key: string, context: TenantContext): Promise<JsonValue | null> {
+export function get(this: StoreContext, key: string, context: TenantContext): JsonValue | null {
   const fullKey = this.getKey(key, context)
   const item = this.store.get(fullKey)
-  if (!item) return null
-  if (item.expiry && Date.now() > item.expiry) {
+  if (item === null || item === undefined) return null
+  if (item.expiry !== undefined && Date.now() > item.expiry) {
     this.store.delete(fullKey)
     return null
   }
diff --git a/frontends/nextjs/tsconfig.json b/frontends/nextjs/tsconfig.json
index 6d66d02d2..b7baf2160 100644
--- a/frontends/nextjs/tsconfig.json
+++ b/frontends/nextjs/tsconfig.json
@@ -14,8 +14,11 @@
     "strictNullChecks": true,
     "strictFunctionTypes": true,
     "strictBindCallApply": true,
+    "strictPropertyInitialization": true,
+    "noImplicitThis": true,
     "noUncheckedIndexedAccess": true,
     "noImplicitReturns": true,
+    "noImplicitOverride": true,
     "moduleResolution": "bundler",
     "allowImportingTsExtensions": true,
     "isolatedModules": true,