Add build workflow

.github/workflows/Build.yml

@@ -0,0 +1,26 @@
+name: Build
+on:
+  push:
+    branch: main
+  pull_request:
+
+jobs:
+  Build:
+    runs-on: macos-14
+    steps:
+      - uses: actions/checkout@v3
+      - name: Install nightly Swift
+        run: |
+          DOWNLOAD=$(curl "https://raw.githubusercontent.com/apple/swift-org-website/main/_data/builds/development/xcode.yml" | yq '.[0].download')
+          DIR=$(curl "https://raw.githubusercontent.com/apple/swift-org-website/main/_data/builds/development/xcode.yml" | yq '.[0].dir')
+          curl -L -sS --show-error --fail "https://download.swift.org/development/xcode/$DIR/$DOWNLOAD" -o $DOWNLOAD
+          sudo installer -store -pkg $DOWNLOAD -target /
+      - name: Select Xcode
+        run: sudo xcode-select -s '/Applications/Xcode_15.3.app'
+      - name: Install Playdate SDK
+        run: |
+          curl -L -sS --show-error --fail "https://download.panic.com/playdate_sdk/PlaydateSDK-latest.zip" -o PlaydateSDK-latest.zip
+          unzip PlaydateSDK-latest.zip
+          sudo installer -store -pkg "PlaydateSDK.pkg" -target /
+      - name: Build
+        run: set -o pipefail && $(xcrun -f swift -toolchain "swift latest") build -c release | xcbeautify --renderer github-actions