diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
new file mode 100644
index 0000000..c8c794d
--- /dev/null
+++ b/.github/workflows/build.yml
@@ -0,0 +1,110 @@
+name: Build iOS IPA
+
+on:
+  push:
+    branches: [main]
+  workflow_dispatch:
+    inputs:
+      configuration:
+        description: 'Build configuration'
+        required: true
+        default: 'debug'
+        type: choice
+        options: ['debug', 'release']
+
+jobs:
+  build:
+    name: Build IPA
+    runs-on: macos-14
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set Xcode version
+        run: sudo xcode-select -s /Applications/Xcode_15.4.app
+
+      - name: Show Xcode version
+        run: xcodebuild -version
+
+      - name: Show build settings
+        run: |
+          xcodebuild -project AreYouSleeping.xcodeproj \
+            -scheme AreYouSleeping \
+            -showBuildSettings \
+            -destination 'generic/platform=iOS'
+
+      - name: Set build number
+        run: |
+          BUILD_NUM=${{ github.run_number }}
+          /usr/libexec/PlistBuddy -c "Set :CFBundleVersion ${BUILD_NUM}" AreYouSleeping/Info.plist
+
+      - name: Build archive
+        run: |
+          xcodebuild archive \
+            -project AreYouSleeping.xcodeproj \
+            -scheme AreYouSleeping \
+            -configuration Release \
+            -destination 'generic/platform=iOS' \
+            -archivePath build/AreYouSleeping.xcarchive \
+            CODE_SIGNING_ALLOWED=NO \
+            CODE_SIGNING_REQUIRED=NO \
+            CODE_SIGN_IDENTITY="" | xcpretty
+
+      - name: Package IPA
+        run: |
+          mkdir -p build/Payload
+          cp -R build/AreYouSleeping.xcarchive/Products/Applications/AreYouSleeping.app build/Payload/
+          cd build
+          zip -r AreYouSleeping.ipa Payload
+          cd ..
+
+      - name: Upload IPA artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: AreYouSleeping-${{ github.run_number }}.ipa
+          path: build/AreYouSleeping.ipa
+          retention-days: 30
+
+      - name: Generate install manifest
+        run: |
+          cat > build/manifest.plist << 'PLIST'
+          <?xml version="1.0" encoding="UTF-8"?>
+          <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+          <plist version="1.0">
+          <dict>
+              <key>items</key>
+              <array>
+                  <dict>
+                      <key>assets</key>
+                      <array>
+                          <dict>
+                              <key>kind</key>
+                              <string>software-package</string>
+                              <key>url</key>
+                              <string>__IPA_URL__</string>
+                          </dict>
+                      </array>
+                      <key>metadata</key>
+                      <dict>
+                          <key>bundle-identifier</key>
+                          <string>com.ausleep.ios</string>
+                          <key>bundle-version</key>
+                          <string>${{ github.run_number }}</string>
+                          <key>kind</key>
+                          <string>software</string>
+                          <key>title</key>
+                          <string>睡了吗</string>
+                      </dict>
+                  </dict>
+              </array>
+          </dict>
+          </plist>
+          PLIST
+
+      - name: Upload manifest
+        uses: actions/upload-artifact@v4
+        with:
+          name: OTA-manifest
+          path: build/manifest.plist
+          retention-days: 30