diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index c8719da3..71696b78 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -6,7 +6,7 @@ on:
   workflow_dispatch:
 
 jobs:
-  xcode_14_3:
+  xcode_14_3_simulator:
     runs-on: macos-13
     env:
       DEVELOPER_DIR: /Applications/Xcode_14.3.app/Contents/Developer
@@ -15,18 +15,14 @@ jobs:
         uses: actions/checkout@v3
       - name: Version
         run: swift --version
+      - name: '📱 Find Simulator'
+        run:  ./simulator-find.sh 16.4 'iPhone 14 Pro'
       - name: Build
-        run: swift test --enable-code-coverage --filter do_not_test
+        run: xcodebuild -scheme FlyingFox-Package -sdk iphonesimulator17.0 -destination '${{env.XCODE_DESTINATION}}' -derivedDataPath build-for-testing
       - name: Test
-        run: swift test --enable-code-coverage --skip-build
-      - name: Gather code coverage
-        run: xcrun llvm-cov export -format="lcov" .build/debug/FlyingFoxPackageTests.xctest/Contents/MacOS/FlyingFoxPackageTests -instr-profile .build/debug/codecov/default.profdata > coverage_report.lcov
-      - name: Upload Coverage
-        uses: codecov/codecov-action@v3
-        with:
-          files: ./coverage_report.lcov
+        run: xcodebuild -scheme FlyingFox-Package -sdk iphonesimulator17.0 -destination '${{env.XCODE_DESTINATION}}' -derivedDataPath test-without-building
 
-  xcode_15_0:
+  xcode_15_0_simulator:
     runs-on: macos-13
     env:
       DEVELOPER_DIR: /Applications/Xcode_15.0.app/Contents/Developer
@@ -35,88 +31,9 @@ jobs:
         uses: actions/checkout@v3
       - name: Version
         run: swift --version
+      - name: '📱 Find Simulator'
+        run:  ./simulator-find.sh 17.0 'iPhone 14 Pro'
       - name: Build
-        run: swift build --build-tests
+        run: xcodebuild -scheme FlyingFox-Package -sdk iphonesimulator17.0 -destination '${{env.XCODE_DESTINATION}}' -derivedDataPath build-for-testing
       - name: Test
-        run: swift test --skip-build
-
-  xcode_14_2:
-    runs-on: macos-13
-    env:
-      DEVELOPER_DIR: /Applications/Xcode_14.2.app/Contents/Developer
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v3
-      - name: Version
-        run: swift --version
-      - name: Build
-        run: swift build --build-tests
-      - name: Test
-        run: swift test --skip-build
-
-  xcode_13_4:
-    runs-on: macos-12
-    env:
-      DEVELOPER_DIR: /Applications/Xcode_13.4.app/Contents/Developer
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v3
-      - name: Version
-        run: swift --version
-      - name: Build
-        run: swift build --build-tests
-      - name: Test
-        run: swift test --skip-build
-
-  xcode_13_2_1:
-    runs-on: macos-11
-    env:
-      DEVELOPER_DIR: /Applications/Xcode_13.2.1.app/Contents/Developer
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v3
-      - name: Version
-        run: swift --version
-      - name: Build
-        run: swift build --build-tests
-      - name: Test
-        run: swift test --skip-build
-
-  linux_swift_5_6_3:
-    runs-on: ubuntu-latest
-    container: swift:5.6.3
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v3
-      - name: Version
-        run: swift --version
-      - name: Build
-        run: swift build --build-tests
-      - name: Test
-        run: swift test --skip-build
-
-  linux_swift_5_7:
-    runs-on: ubuntu-latest
-    container: swift:5.7
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v3
-      - name: Version
-        run: swift --version
-      - name: Build
-        run: swift build --build-tests
-      - name: Test
-        run: swift test --skip-build
-
-  linux_swift_5_8:
-    runs-on: ubuntu-latest
-    container: swift:5.8
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v3
-      - name: Version
-        run: swift --version
-      - name: Build
-        run: swift build --build-tests
-      - name: Test
-        run: swift test --skip-build
+        run: xcodebuild -scheme FlyingFox-Package -sdk iphonesimulator17.0 -destination '${{env.XCODE_DESTINATION}}' -derivedDataPath test-without-building
diff --git a/simulator-find.sh b/simulator-find.sh
new file mode 100755
index 00000000..d8a7bedf
--- /dev/null
+++ b/simulator-find.sh
@@ -0,0 +1,40 @@
+#!/usr/bin/env bash
+
+set -eu
+
+if [ -z ${1+x} ]; then
+  echo "Supply SDK version to script. % ./simulator-find.sh 16.4 'iPhone 14 Pro'"
+  exit 1
+fi
+
+if [ -z ${2+x} ]; then
+  echo "Supply device to script. % ./simulator-find.sh 16.4 'iPhone 14 Pro'"
+  exit 1
+fi
+
+SDK_VERSION=$1
+DEVICE=$2
+
+echo "List All Devices"
+CMD_SIMULATOR="xcrun simctl list"
+echo $CMD_SIMULATOR
+eval $CMD_SIMULATOR
+
+CMD_SIMULATOR="xcrun simctl list devices 'iOS $SDK_VERSION' | grep '$DEVICE' | grep -E -o -m 1 -i '([0-9a-f]{8}-([0-9a-f]{4}-){3}[0-9a-f]{12})'"
+echo $CMD_SIMULATOR
+
+set +e # attempt to boot ignoring errors
+SIMULATOR_ID=$(eval ${CMD_SIMULATOR})
+set -e # restore fail on errors
+
+if [ -z "$SIMULATOR_ID" ]
+then
+echo "Cannot find simulator matching iOS $SDK_VERSION $DEVICE"
+exit 1
+fi
+
+export XCODE_SIMULATOR_ID=$SIMULATOR_ID
+export XCODE_DESTINATION="platform=iOS Simulator,id=$XCODE_SIMULATOR_ID"
+echo "Found Simulator ${XCODE_SIMULATOR_ID}"
+
+echo "XCODE_DESTINATION=$XCODE_DESTINATION" >> $GITHUB_ENV