diff --git a/.github/workflows/task-3.yaml b/.github/workflows/task-3.yaml
new file mode 100644
index 0000000..f41e683
--- /dev/null
+++ b/.github/workflows/task-3.yaml
@@ -0,0 +1,29 @@
+name: task-3-workflow
+run-name: Task 3 workflow
+on:
+  pull_request:
+    paths:
+      - "desktop-app/**/*.ts"
+      - "desktop-app/package.json"
+      - "desktop-app/tsconfig.*"
+      - "desktop-app/vite"
+
+defaults:
+  run:
+    working-directory: desktop-app
+jobs:
+  unit-tests:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+      - name: Use Node.js LTS
+        uses: actions/setup-node@v4
+        with:
+          node-version: "lts/*"
+          cache: "npm"
+          cache-dependency-path: desktop-app
+      - name: Install dependencies
+        run: npm ci
+      - name: Run unit tests
+        run: npm test