Add Android build support

.github/workflows/swift.yml

@@ -37,3 +37,81 @@ jobs:
       run: swift build -c ${{ matrix.config }}
     - name: Test
       run: swift test -c ${{ matrix.config }}
+
+  android:
+    name: Android
+    runs-on: macos-15
+    strategy:
+      fail-fast: false
+      matrix:
+        config: ["debug", "release"]
+    env:
+      SWIFT_VERSION: "6.3.2"
+      ANDROID_NDK_VERSION: "27.2.12479018"
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v4
+    - name: Install Swift
+      run: |
+        curl -O https://download.swift.org/swiftly/darwin/swiftly.pkg
+        installer -pkg swiftly.pkg -target CurrentUserHomeDirectory
+        ~/.swiftly/bin/swiftly init --assume-yes --skip-install
+        echo "$HOME/.swiftly/bin" >> "$GITHUB_PATH"
+        source ~/.swiftly/env.sh
+        swiftly install ${{ env.SWIFT_VERSION }}
+        swiftly use ${{ env.SWIFT_VERSION }}
+        echo "$(swiftly use --print-location)/usr/bin" >> "$GITHUB_PATH"
+    - name: Install Android NDK
+      run: $ANDROID_HOME/cmdline-tools/latest/bin/sdkmanager --install "ndk;${{ env.ANDROID_NDK_VERSION }}"
+    - name: Install Swift SDK for Android
+      run: |
+        curl -L -o android-sdk.artifactbundle.tar.gz "https://download.swift.org/swift-${{ env.SWIFT_VERSION }}-release/android-sdk/swift-${{ env.SWIFT_VERSION }}-RELEASE/swift-${{ env.SWIFT_VERSION }}-RELEASE_android.artifactbundle.tar.gz"
+        CHECKSUM=$(swift package compute-checksum android-sdk.artifactbundle.tar.gz)
+        swift sdk install android-sdk.artifactbundle.tar.gz --checksum "$CHECKSUM"
+        ANDROID_NDK_HOME="$ANDROID_HOME/ndk/${{ env.ANDROID_NDK_VERSION }}" \
+          bash "$HOME/Library/org.swift.swiftpm/swift-sdks/swift-${{ env.SWIFT_VERSION }}-RELEASE_android.artifactbundle/swift-android/scripts/setup-android-sdk.sh"
+    - name: Build
+      run: TARGET_OS_ANDROID=1 swift build --swift-sdk aarch64-unknown-linux-android28 -c ${{ matrix.config }}
+
+  ios:
+    name: iOS
+    runs-on: macos-26
+    strategy:
+      fail-fast: false
+      matrix:
+        config: ["debug", "release"]
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v4
+    - name: Select Simulator
+      run: |
+        DEVICE_ID=$(xcrun simctl list devices available -j | python3 -c "import json,sys; d=json.load(sys.stdin)['devices']; devices=[v for vs in d.values() for v in vs if 'iPhone' in v['name']]; print(devices[0]['udid'])")
+        echo "DEVICE_ID=${DEVICE_ID}" >> "$GITHUB_ENV"
+    - name: Build
+      run: >
+        xcodebuild build -scheme CoreModel-SQLite
+        -destination "generic/platform=iOS"
+        -configuration ${{ matrix.config == 'release' && 'Release' || 'Debug' }}
+        -skipMacroValidation -skipPackagePluginValidation
+    - name: Test
+      run: >
+        xcodebuild test -scheme CoreModel-SQLite
+        -destination "id=${{ env.DEVICE_ID }}"
+        -configuration ${{ matrix.config == 'release' && 'Release' || 'Debug' }}
+        -skipMacroValidation -skipPackagePluginValidation
+        ENABLE_TESTABILITY=YES
+
+  android-test:
+    name: Android Test
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v4
+    - name: Test on Android emulator
+      uses: skiptools/swift-android-action@v2
+      with:
+        swift-version: "6.3.2"
+        android-api-level: 28
+        swift-configuration: debug
+        free-disk-space: true
+        run-tests: true

.swift-version

@@ -0,0 +1 @@
+6.3.2

Package.swift

@@ -1,5 +1,21 @@
-// swift-tools-version: 6.0
+// swift-tools-version: 6.1
 import PackageDescription
+import Foundation
+
+// Android has no system libsqlite3, so it needs SQLite.swift's embedded
+// copy. macOS and Linux keep SQLite.swift's own default for the platform.
+let isAndroid = ProcessInfo.processInfo.environment["TARGET_OS_ANDROID"] == "1"
+
+let sqliteDependency: Package.Dependency = isAndroid
+    ? .package(
+        url: "https://github.com/stephencelis/SQLite.swift.git",
+        from: "0.16.0",
+        traits: ["SQLiteSwiftCSQLite"]
+    )
+    : .package(
+        url: "https://github.com/stephencelis/SQLite.swift.git",
+        from: "0.16.0"
+    )
 
 let package = Package(
     name: "CoreModel-SQLite",
@@ -20,10 +36,7 @@ let package = Package(
             url: "https://github.com/PureSwift/CoreModel",
             from: "2.6.3"
         ),
-        .package(
-            url: "https://github.com/stephencelis/SQLite.swift.git",
-            from: "0.16.0"
-        )
+        sqliteDependency
     ],
     targets: [
         .target(