diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7cc556e..8875e54 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -14,6 +14,31 @@ permissions:
   contents: read
 
 jobs:
+  build-test:
+    name: Build & Test
+    runs-on: macos-15
+    timeout-minutes: 30
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Select Xcode
+        run: |
+          if [ ! -d /Applications/Xcode_16.4.app ]; then
+            echo "Xcode 16.4 not found. Installed Xcode versions:"
+            ls /Applications | grep Xcode || true
+            exit 1
+          fi
+          sudo xcode-select -s /Applications/Xcode_16.4.app/Contents/Developer
+
+      - name: Verify Swift version
+        run: swift --version
+
+      - name: Build
+        run: swift build
+
+      - name: Test
+        run: swift test
+
   docc:
     name: DocC catalog
     runs-on: macos-15
diff --git a/README.md b/README.md
index c5c796c..8865794 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,7 @@
 # ReliaBLE
 
+[![CI](https://github.com/Five3Apps/ReliaBLE/actions/workflows/ci.yml/badge.svg)](https://github.com/Five3Apps/ReliaBLE/actions/workflows/ci.yml)
+
 Modern library for handling BLE connections, with a focus on reliability.
 
 ## Installation