diff --git a/.github/workflows/pull_request.yml b/.github/workflows/pull_request.yml
index 3cca3d3..c07e9d1 100644
--- a/.github/workflows/pull_request.yml
+++ b/.github/workflows/pull_request.yml
@@ -20,14 +20,15 @@ jobs:
           curl -sL https://raw.githubusercontent.com/apple/swift-mmio/refs/heads/main/.swift-format -o .swift-format-mmio
           diff .swift-format .swift-format-mmio
 
-#  tests:
-#    name: Test
-#    uses: swiftlang/github-workflows/.github/workflows/swift_package_test.yml@main
-#    with:
-#      macos_exclude_xcode_versions: "[{\"xcode_version\": \"16.0\"}, {\"xcode_version\": \"16.1\"}, {\"xcode_version\": \"16.2\"}, {\"xcode_version\": \"16.3\"}]"
-#      linux_exclude_swift_versions: "[{\"swift_version\": \"5.9\"}, {\"swift_version\": \"5.10\"}, {\"swift_version\": \"6.0\"}, {\"swift_version\": \"6.1\"}, {\"swift_version\": \"nightly-main\"}, {\"swift_version\": \"nightly-6.1\"}, {\"swift_version\": \"nightly-6.2\"}]"
-#      windows_exclude_swift_versions: "[{\"swift_version\": \"5.9\"}, {\"swift_version\": \"6.0\"}, {\"swift_version\": \"6.1\"}, {\"swift_version\": \"nightly\"}, {\"swift_version\": \"nightly-6.1\"}]"
-#      enable_macos_checks: true
+  tests:
+    name: Test
+    uses: swiftlang/github-workflows/.github/workflows/swift_package_test.yml@main
+    with:
+      macos_exclude_xcode_versions: "[{\"xcode_version\": \"16.0\"}, {\"xcode_version\": \"16.1\"}, {\"xcode_version\": \"16.2\"}, {\"xcode_version\": \"16.3\"}]"
+      linux_exclude_swift_versions: "[{\"swift_version\": \"5.9\"}, {\"swift_version\": \"5.10\"}, {\"swift_version\": \"6.0\"}, {\"swift_version\": \"6.1\"}, {\"swift_version\": \"nightly-main\"}, {\"swift_version\": \"nightly-6.1\"}]"
+      windows_exclude_swift_versions: "[{\"swift_version\": \"5.9\"}, {\"swift_version\": \"6.0\"}, {\"swift_version\": \"6.1\"}, {\"swift_version\": \"nightly\"}, {\"swift_version\": \"nightly-6.1\"}]"
+      enable_macos_checks: false
+      enable_windows_checks: false
 
   soundness:
     name: Soundness
diff --git a/.unacceptablelanguageignore b/.unacceptablelanguageignore
new file mode 100644
index 0000000..fb9dc39
--- /dev/null
+++ b/.unacceptablelanguageignore
@@ -0,0 +1 @@
+CODE_OF_CONDUCT.md
diff --git a/Tests/ExampleParserTests/TestQOI.swift b/Tests/ExampleParserTests/TestQOI.swift
index b67af7e..00bb257 100644
--- a/Tests/ExampleParserTests/TestQOI.swift
+++ b/Tests/ExampleParserTests/TestQOI.swift
@@ -15,16 +15,18 @@ import Testing
 
 #if canImport(AppKit)
 import AppKit
+#else
+import Foundation
 #endif
 
 struct QOITests {
   @Test(arguments: ["tricolor", "antelope"])
   func parseImage(fileName: String) throws {
     let qoi = try #require(Self.getQOIPixels(testFileName: fileName))
-    if #available(macOS 10.0, *) {
-      let png = try #require(Self.getPNGPixels(testFileName: fileName))
-      #expect(png == qoi)
-    }
+#if canImport(AppKit)
+    let png = try #require(Self.getPNGPixels(testFileName: fileName))
+    #expect(png == qoi)
+#endif
   }
 
   static func getQOIPixels(testFileName: String) -> Data? {
@@ -36,7 +38,7 @@ struct QOITests {
     }.pixels
   }
 
-  @available(macOS 10.0, *)
+#if canImport(AppKit)
   static func getPNGPixels(testFileName: String) -> Data? {
     guard let imageData = testData(named: "PNG/\(testFileName).png"),
       let image = NSImage(data: imageData)
@@ -53,4 +55,5 @@ struct QOITests {
     }
     return nil
   }
+#endif
 }