diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5044ada..f125b7b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -18,14 +18,9 @@ jobs:
           node-version: 18
 
       - name: Install dependencies
-        run: npm install
-
-
-      - name: Verify Vitest installation
-        run: |
-          echo "Checking Vitest installation..."
-          which vitest || echo "Vitest not found!"  # Check if Vitest is installed
-          npm list vitest  # List the Vitest package to verify installation
+        run: |  
+          npm install vitest --save-dev
+          npm install c8 --save-dev
 
 
       # Uncomment this block if you eventually want bundle analysis enabled again:
@@ -50,7 +45,10 @@ jobs:
       #   run: npm run build
 
       - name: Run tests with coverage
-        run: npm run test --coverage  || true
+        run: |
+          mkdir -p coverage
+          npm run test -- --coverage  || true
+
 
       - name: List all files recursively (debugging step)
         run: |
@@ -59,17 +57,21 @@ jobs:
           find . -type f -name "*.json"
           find . -type f -name "*.lcov*"
 
+      - name: Upload code coverage to Codacy
+        run: bash <(curl -Ls https://coverage.codacy.com/get.sh)
+        env:
+          CODACY_PROJECT_TOKEN: ${{ secrets.CODACY_PROJECT_TOKEN }}
+          CODACY_API_TOKEN: ${{ secrets.CODACY_API_TOKEN }}
+          CODACY_ORGANIZATION_PROVIDER: gh
+          CODACY_USERNAME: nofarb
+          CODACY_PROJECT_NAME: example-javascript
+
 
       - name: Upload code coverage to Codecov
         uses: codecov/codecov-action@v5
         env:
-          CODECOV_TOKEN: ${{ secrets.CODECOV_ORG_TOKEN }}
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
 
-      - name: Upload test results to Codecov
-        if: ${{ !cancelled() }}
-        uses: codecov/test-results-action@v1
-        with:
-          token: ${{ secrets.CODECOV_ORG_TOKEN }}
 
       - name: SonarQube Scan
         uses: SonarSource/sonarqube-scan-action@v5
diff --git a/README.md b/README.md
index aaa07b0..dd9e8f3 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@
 This example repository shows how Codecov can be integrated with a simple javascript project. It uses **GitHub Actions** and **CircleCI** as CI/CD providers and **jest** as the coverage provider.
 
 For more information, please see the links below.
-
+ 
 ## Links
 - [Quick Start](https://docs.codecov.com/docs/quick-start)
 - [GitHub Tutorial](https://docs.codecov.com/docs/github-tutorial)
diff --git a/app.js b/app.js
new file mode 100644
index 0000000..2f62be5
--- /dev/null
+++ b/app.js
@@ -0,0 +1,36 @@
+const Calculator = require('./calculator');
+const MathUtils = require('./mathUtils');
+
+// Let's do some very convoluted math operations for no reason.
+
+const calc = new Calculator();
+
+// We'll add 10 and 20, then check if the result is even or odd, and then square it, cube it, and find the factorial of the result.
+
+let sum = calc.add(10, 20);  // Sum of 10 + 20
+
+let isEven = MathUtils.isEven(sum);  // Is the sum even?
+let isOdd = MathUtils.isOdd(sum);    // Is the sum odd?
+
+console.log(`Sum: ${sum}`);
+console.log(`Is the sum even? ${isEven}`);
+console.log(`Is the sum odd? ${isOdd}`);
+
+let squared = MathUtils.square(sum);  // Square of the sum
+let cubed = MathUtils.cube(sum);      // Cube of the sum
+
+console.log(`Squared sum: ${squared}`);
+console.log(`Cubed sum: ${cubed}`);
+
+let factorial = MathUtils.factorial(sum);  // Factorial of the sum
+
+console.log(`Factorial of sum: ${factorial}`);
+
+// Now let's subtract the sum by 5, check if it's even, square it again, then divide by 3
+let result = calc.subtract(sum, 5);
+let resultSquared = MathUtils.square(result);
+let resultDivided = calc.divide(resultSquared, 3);
+
+console.log(`Subtract 5 from sum: ${result}`);
+console.log(`Squared result: ${resultSquared}`);
+console.log(`Result divided by 3: ${resultDivided}`);
diff --git a/app/core/calculator.test.js b/app/core/calculator.test.js
index 7560167..6dbcf41 100644
--- a/app/core/calculator.test.js
+++ b/app/core/calculator.test.js
@@ -26,33 +26,3 @@ test('subtract function', () => {
   expect(subtract(1e+100, 1e+100)).toBe(0); // Large number subtraction
 });
 
-test('multiply function', () => {
-  expect(multiply(1, 2)).toBe(2);
-  expect(multiply(2, 0)).toBe(0);
-  expect(multiply(-2, 3)).toBe(-6);
-  expect(multiply(0.5, 2)).toBe(1); // Floating point multiplication
-  expect(multiply(1000, 1000)).toBe(1000000); // Large number multiplication
-});
-
-test('divide function', () => {
-  expect(divide(10, 2)).toBe(5);
-  expect(divide(1, 0)).toBe("Cannot divide by 0"); // Divide by zero case
-  expect(divide(-10, 2)).toBe(-5);
-  expect(divide(10, -2)).toBe(-5);
-  expect(divide(1000, 1000)).toBe(1); // Large number division
-  expect(divide(5, "a")).toThrow(); // Invalid division input
-});
-
-test('divide2 function', () => {
-  expect(divide(10, 2)).toBe(5);  // Valid division
-  expect(divide(1, 0)).toBe("Cannot divide by 0"); // This tests the divide by zero scenario
-  expect(divide(-10, 2)).toBe(-5); // Negative division
-  expect(divide(10, -2)).toBe(-5); // Negative division with swapped operands
-});
-
-
-test('floating-point operations', () => {
-  expect(add(0.1, 0.2)).toBeCloseTo(0.3, 5); // Floating point precision
-  expect(subtract(0.3, 0.1)).toBeCloseTo(0.2, 5); // Floating point subtraction
-  expect(multiply(0.1, 0.2)).toBeCloseTo(0.02, 5); // Floating point multiplication
-});
diff --git a/babel.config.js b/babel.config.js
new file mode 100644
index 0000000..a79d119
--- /dev/null
+++ b/babel.config.js
@@ -0,0 +1,3 @@
+module.exports = {
+  presets: ['@babel/preset-env'],
+};
diff --git a/jest.config.js b/jest.config.js
index 137e9ef..88f5acd 100644
--- a/jest.config.js
+++ b/jest.config.js
@@ -1,6 +1,6 @@
 module.exports = {
-  testEnvironment: 'jsdom',
   collectCoverage: true, // Enable coverage collection
-  coverageDirectory: 'coverage', // Set the output directory for coverage reports
-  coverageReporters: ['json', 'lcov', 'text', 'html'], // Specify formats for coverage reports
+  coverageReporters: ['lcov', 'json', 'html'], // Generate LCOV, JSON, and HTML reports
+  coverageDirectory: 'coverage', // Directory where the coverage reports will be saved
+  testEnvironment: 'node', // Or 'jsdom' depending on your needs
 };
diff --git a/package.json b/package.json
index 3a7b637..9f884c7 100644
--- a/package.json
+++ b/package.json
@@ -1,14 +1,9 @@
-
-
-
 {
   "scripts": {
-    "test": "vitest run --coverage",
-    "build": "vite build"
+    "test": "vitest run"  
   },
-  "dependencies": {
-    "vitest": "1.6.1",
-    "@vitest/coverage-v8": "1.6.1",
-    "vite": "your-vite-version-here"
+  "devDependencies": {
+    "vitest": "^0.20.0",  
+    "vite": "^2.9.0"      
   }
 }
diff --git a/vite.config.js b/vite.config.js
index 6d248dd..6bc606d 100644
--- a/vite.config.js
+++ b/vite.config.js
@@ -1,12 +1,12 @@
-import { defineConfig } from 'vitest/config';  // Import Vitest config
+import { defineConfig } from 'vitest/config';  
 
 export default defineConfig({
   test: {
-    include: ['app/**/*.test.js'],  // Path to test files
+    include: ['app/**/*.test.js'], 
     coverage: {
-      provider: 'v8',               // Using v8 coverage provider for modern JavaScript
-      reporters: ['lcov', 'text', 'json', 'html', 'cobertura'], // Output coverage formats
-      reportDir: 'coverage/lcov-report',  // Directory for coverage reports
+      provider: 'v8',  
+      reporters: ['lcov', 'json', 'html'],  
+      reportDir: 'coverage',  
     },
   }
 });