diff --git a/.buildkite/commands/run-tests.sh b/.buildkite/commands/run-tests.sh
new file mode 100755
index 0000000..ad2d215
--- /dev/null
+++ b/.buildkite/commands/run-tests.sh
@@ -0,0 +1,21 @@
+#!/bin/bash -eu
+
+# Notice that:
+#
+# - We are using raw `xcodebuild` without extra tooling such as Fastlane,
+#   `xcpretty`, or `xcbeautify`. This is an intentional compromise to keep the
+#   setup lean, as adding any of those would require extras in CI such as
+#   chating for what, right now, looks like merely a log readability gain.
+#
+# - The iOS Simulator version is hardcoded in the command call, unlike the
+#   Simulator device, so we have a single source of truth. The downside is that
+#   the syntax in the pipeline is less clear: a reader might as where's the
+#   iOS version set. As long as we only need to test against the latest iOS
+#   version, that seems like a reasonable tradeoff to make it easier to move to
+#   newer versions as they are released.
+SIMULATOR_NAME=$1
+
+xcodebuild clean test \
+  -project 'ScreenObject.xcodeproj' \
+  -scheme 'ScreenObject' \
+  -destination "platform=iOS Simulator,name=$SIMULATOR_NAME,OS=14.5"
diff --git a/.buildkite/pipeline.yml b/.buildkite/pipeline.yml
new file mode 100644
index 0000000..4d7c872
--- /dev/null
+++ b/.buildkite/pipeline.yml
@@ -0,0 +1,11 @@
+env:
+  IMAGE_ID: xcode-12.5.1
+agents:
+  queue: 'mac'
+
+steps:
+  - label: "🧪 Build and Test (iPhone 12 Simulator)"
+    command: .buildkite/commands/run-tests.sh 'iPhone 12'
+
+  - label: "🧪 Build and Test (iPad Pro (12.9-inch) (5th generation) Simulator)"
+    command: .buildkite/commands/run-tests.sh 'iPad Pro (12.9-inch) (5th generation)'
diff --git a/ScreenObject.xcodeproj/xcshareddata/xcschemes/ScreenObject.xcscheme b/ScreenObject.xcodeproj/xcshareddata/xcschemes/ScreenObject.xcscheme
index cd1b7da..30421a9 100644
--- a/ScreenObject.xcodeproj/xcshareddata/xcschemes/ScreenObject.xcscheme
+++ b/ScreenObject.xcodeproj/xcshareddata/xcschemes/ScreenObject.xcscheme
@@ -28,6 +28,16 @@
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
       shouldUseLaunchSchemeArgsEnv = "YES">
       <Testables>
+         <TestableReference
+            skipped = "NO">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "3FF14351266E2C7500138163"
+               BuildableName = "TestAppUITests.xctest"
+               BlueprintName = "TestAppUITests"
+               ReferencedContainer = "container:ScreenObject.xcodeproj">
+            </BuildableReference>
+         </TestableReference>
       </Testables>
    </TestAction>
    <LaunchAction