diff --git a/.github/FUNDING.yml b/.github/FUNDING.yml
new file mode 100644
index 0000000..83e3ffb
--- /dev/null
+++ b/.github/FUNDING.yml
@@ -0,0 +1 @@
+github: [mattmassicotte]
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..65d6a2c
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,34 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - main
+    paths-ignore:
+      - 'README.md'
+      - 'CODE_OF_CONDUCT.md'
+      - '.editorconfig'
+      - '.spi.yml'
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  test:
+    name: Test
+    runs-on: macOS-14
+    env:
+      DEVELOPER_DIR: /Applications/Xcode_15.3.app/Contents/Developer
+    strategy:
+      matrix:
+        destination:
+          - "platform=macOS"
+          - "platform=macOS,variant=Mac Catalyst"
+          - "platform=iOS Simulator,name=iPhone 12"
+          - "platform=tvOS Simulator,name=Apple TV"
+          - "platform=visionOS Simulator,name=Apple Vision Pro"
+
+    steps:
+      - uses: actions/checkout@v4
+      - name: Test platform ${{ matrix.destination }}
+        run: set -o pipefail && xcodebuild -scheme Glyph -destination "${{ matrix.destination }}" test | xcbeautify
diff --git a/Package.swift b/Package.swift
index f96db3f..ddd755f 100644
--- a/Package.swift
+++ b/Package.swift
@@ -1,23 +1,31 @@
 // swift-tools-version: 5.10
-// The swift-tools-version declares the minimum version of Swift required to build this package.
 
 import PackageDescription
 
 let package = Package(
-    name: "Glyph",
-    products: [
-        // Products define the executables and libraries a package produces, making them visible to other packages.
-        .library(
-            name: "Glyph",
-            targets: ["Glyph"]),
-    ],
-    targets: [
-        // Targets are the basic building blocks of a package, defining a module or a test suite.
-        // Targets can depend on other targets in this package and products from dependencies.
-        .target(
-            name: "Glyph"),
-        .testTarget(
-            name: "GlyphTests",
-            dependencies: ["Glyph"]),
-    ]
+	name: "Glyph",
+	platforms: [
+		.macOS(.v10_15),
+		.macCatalyst(.v13),
+		.iOS(.v13),
+		.tvOS(.v13),
+		.visionOS(.v1),
+	],
+	products: [
+		.library(name: "Glyph", targets: ["Glyph"]),
+	],
+	targets: [
+		.target(name: "Glyph"),
+		.testTarget(name: "GlyphTests", dependencies: ["Glyph"]),
+	]
 )
+
+let swiftSettings: [SwiftSetting] = [
+	.enableExperimentalFeature("StrictConcurrency"),
+]
+
+for target in package.targets {
+	var settings = target.swiftSettings ?? []
+	settings.append(contentsOf: swiftSettings)
+	target.swiftSettings = settings
+}