diff --git a/.github/workflows/ui-tests.yml b/.github/workflows/ui-tests.yml
index 8b8ffefc..77b17e81 100644
--- a/.github/workflows/ui-tests.yml
+++ b/.github/workflows/ui-tests.yml
@@ -52,5 +52,10 @@ jobs:
       - name: Build
         run: make build
 
-      - name: UI Tests
-        run: make test-ui
+      # - name: UI Tests
+      #   run: make test-ui
+
+      - uses: mobile-dev-inc/action-maestro-cloud@v1
+        with:
+          api-key: ${{ secrets.MAESTRO_CLOUD_API_KEY }}
+          app-file: build/Build/Products/Debug-iphonesimulator/Gem.app
diff --git a/Makefile b/Makefile
index a19db833..7a54e2c7 100644
--- a/Makefile
+++ b/Makefile
@@ -50,12 +50,14 @@ generate-stone:
 	@rm -rf Packages/Gemstone
 	@cp -Rf core/gemstone/target/spm Packages/Gemstone
 
+# output file: build/Build/Products/Debug-iphonesimulator/Gem.app
 build:
 	@set -o pipefail && xcodebuild -project Gem.xcodeproj \
 	-scheme Gem \
+	-configuration Debug \
 	-sdk iphonesimulator \
-	-destination "platform=iOS Simulator,name=iPhone 15" \
-	build
+	-derivedDataPath ./build \
+	-destination "platform=iOS Simulator,name=iPhone 15" build | xcbeautify
 
 test-ui:
 	#maestro start-device --platform=ios --os-version=17