diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..4b932f0
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,66 @@
+name: CI
+
+on:
+  push:
+    branches: [ main, master ]
+  pull_request:
+    branches: [ main, master ]
+
+jobs:
+  tslint:
+    name: TypeScript Type Check
+    runs-on: ubuntu-latest
+    
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+      
+    - name: Setup Bun
+      uses: oven-sh/setup-bun@v1
+      with:
+        bun-version: latest
+    
+    - name: Install dependencies
+      run: bun install
+    
+    - name: Run TypeScript type checking
+      run: bun run tslint
+
+  check:
+    name: Biome Check
+    runs-on: ubuntu-latest
+    
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+      
+    - name: Setup Bun
+      uses: oven-sh/setup-bun@v1
+      with:
+        bun-version: latest
+    
+    - name: Install dependencies
+      run: bun install
+    
+    - name: Run Biome check
+      run: bun run check
+
+  test:
+    name: Run Tests
+    runs-on: ubuntu-latest
+    
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+      
+    - name: Setup Bun
+      uses: oven-sh/setup-bun@v1
+      with:
+        bun-version: latest
+    
+    - name: Install dependencies
+      run: bun install
+    
+    - name: Run tests
+      run: bun run test
+
diff --git a/package.json b/package.json
index 02dbd22..6a951ca 100644
--- a/package.json
+++ b/package.json
@@ -8,6 +8,7 @@
     "build:watch": "bun build src/client/app.tsx --outdir dist --target browser --watch",
     "start": "bun run build && PORT=443 bun run src/index.ts",
     "dev:full": "concurrently \"bun run dev\" \"bun run build:watch\"",
+    "tslint": "tsc --noEmit",
     "check": "biome check src/",
     "check:fix": "biome check --fix src/"
   },
diff --git a/src/assert.ts b/src/assert.ts
index 67e8739..8e1788b 100644
--- a/src/assert.ts
+++ b/src/assert.ts
@@ -1,15 +1,21 @@
-export const assert = {
-    ok(value: unknown, message?: string) {
+interface Assert {
+    ok(value: unknown, message?: string): asserts value;
+    strictEqual<T>(actual: T, expected: T, message?: string): void;
+    notStrictEqual<T>(actual: T, expected: T, message?: string): void;
+}
+
+export const assert: Assert = {
+    ok(value: unknown, message?: string): asserts value {
         if (!value) {
             throw new Error(message || 'Assertion failed: value is not truthy');
         }
     },
-    strictEqual<T>(actual: T, expected: T, message?: string) {
+    strictEqual<T>(actual: T, expected: T, message?: string): void {
         if (actual !== expected) {
             throw new Error(message || `Assertion failed: ${actual} !== ${expected}`);
         }
     },
-    notStrictEqual<T>(actual: T, expected: T, message?: string) {
+    notStrictEqual<T>(actual: T, expected: T, message?: string): void {
         if (actual === expected) {
             throw new Error(message || `Assertion failed: ${actual} === ${expected}`);
         }
diff --git a/src/client/components/IndexPage.tsx b/src/client/components/IndexPage.tsx
index ff7b4e2..8e457d3 100644
--- a/src/client/components/IndexPage.tsx
+++ b/src/client/components/IndexPage.tsx
@@ -37,9 +37,9 @@ export function IndexPage({ path: _path }: { path?: string }) {
                             textAlign: 'left',
                         }}
                     >
-                       In-browser, instant, and secure.
+                        In-browser, instant, and secure.
                     </p>
-                        
+
                     {/* CTA Button */}
                     <button
                         type="button"
@@ -71,8 +71,6 @@ export function IndexPage({ path: _path }: { path?: string }) {
                     >
                         Get Started Here
                     </button>
-
-                   
                 </div>
             </div>
 
diff --git a/src/client/components/LoginPage.tsx b/src/client/components/LoginPage.tsx
index e9e6fcd..e83f3dd 100644
--- a/src/client/components/LoginPage.tsx
+++ b/src/client/components/LoginPage.tsx
@@ -629,20 +629,6 @@ export function LoginPage({ path: _path }: { path?: string }) {
                                 lineHeight: '1.5',
                                 textShadow: '0 1px 2px rgba(0, 0, 0, 0.1)',
                                 animation: 'pulse 2s infinite',
-                                '@keyframes pulse': {
-                                    '0%': {
-                                        transform: 'scale(1)',
-                                        boxShadow: '0 0 0 0 rgba(255, 255, 255, 0.4)',
-                                    },
-                                    '70%': {
-                                        transform: 'scale(1.02)',
-                                        boxShadow: '0 0 0 10px rgba(255, 255, 255, 0)',
-                                    },
-                                    '100%': {
-                                        transform: 'scale(1)',
-                                        boxShadow: '0 0 0 0 rgba(255, 255, 255, 0)',
-                                    },
-                                },
                             }}
                         >
                             <div
@@ -651,17 +637,6 @@ export function LoginPage({ path: _path }: { path?: string }) {
                                     fontWeight: '600',
                                     animation: 'shake 1.5s infinite',
                                     display: 'inline-block',
-                                    '@keyframes shake': {
-                                        '0%, 100%': {
-                                            transform: 'translateX(0)',
-                                        },
-                                        '10%, 30%, 50%, 70%, 90%': {
-                                            transform: 'translateX(-2px)',
-                                        },
-                                        '20%, 40%, 60%, 80%': {
-                                            transform: 'translateX(2px)',
-                                        },
-                                    },
                                 }}
                             >
                                 ⚠️ Important:
diff --git a/src/encryption.ts b/src/encryption.ts
index 0c9359d..4b1959f 100644
--- a/src/encryption.ts
+++ b/src/encryption.ts
@@ -1,6 +1,7 @@
 import { scryptAsync } from '@noble/hashes/scrypt';
 // @ts-ignore dont want to install @types/browserify-cipher as it has incorrect definition of the func we use
 import * as aes from 'browserify-cipher';
+// @ts-ignore its purejs, we donthave types for it
 import { hexToUint8Array, uint8ArrayToHex } from './uint8array-extras';
 
 const createCipheriv = aes.createCipheriv;
diff --git a/src/spark-service.ts b/src/spark-service.ts
index 6a34fc0..e1b1970 100644
--- a/src/spark-service.ts
+++ b/src/spark-service.ts
@@ -16,8 +16,8 @@ export async function initializeSparkWallet() {
             },
         });
 
-        wallet.on('transfer:claimed', (transferId: string, balance: number) => {
-            console.log(`Transfer ${transferId} claimed. New balance: ${balance}`);
+        wallet.on('transfer:claimed', (transferId: string, updatedBalance: bigint) => {
+            console.log(`Transfer ${transferId} claimed. New balance: ${Number(updatedBalance)}`);
         });
 
         sparkWallet = wallet;