diff --git a/.github/workflows/xcode-build.yml b/.github/workflows/xcode-build.yml
new file mode 100644
index 0000000..268de2a
--- /dev/null
+++ b/.github/workflows/xcode-build.yml
@@ -0,0 +1,27 @@
+name: Xcode build
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
+permissions:
+  contents: read
+
+jobs:
+  macos:
+    name: macOS
+    runs-on: macos-26
+
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v7
+
+      - name: Build for macOS
+        run: |
+          xcodebuild build \
+            -project potassiumProvider.xcodeproj \
+            -scheme potassiumProvider \
+            -destination 'platform=macOS' \
+            CODE_SIGNING_ALLOWED=NO
diff --git a/doc/TESTING_AND_DEVELOPMENT.md b/doc/TESTING_AND_DEVELOPMENT.md
index 5e21972..07cd651 100644
--- a/doc/TESTING_AND_DEVELOPMENT.md
+++ b/doc/TESTING_AND_DEVELOPMENT.md
@@ -110,6 +110,23 @@ xcodebuild test \
 Use `xcodebuild -showdestinations` to copy the exact Mac destination if local
 Xcode requires a more specific macOS variant.
 
+## Continuous Integration
+
+GitHub Actions runs an unsigned macOS build for every pull request and every
+push to `main`. The build uses the `macos-26` runner and its default Xcode 26.5
+installation:
+
+```sh
+xcodebuild build \
+  -project potassiumProvider.xcodeproj \
+  -scheme potassiumProvider \
+  -destination 'platform=macOS' \
+  CODE_SIGNING_ALLOWED=NO
+```
+
+This initial workflow checks compilation only. Unit tests, UI tests, caching,
+and iOS Simulator and visionOS jobs remain outside its scope.
+
 ## Test Style
 
 - New unit tests should use Swift Testing (`import Testing`).
diff --git a/potassiumProvider.xcodeproj/project.pbxproj b/potassiumProvider.xcodeproj/project.pbxproj
index 115acb0..53fec09 100644
--- a/potassiumProvider.xcodeproj/project.pbxproj
+++ b/potassiumProvider.xcodeproj/project.pbxproj
@@ -1077,7 +1077,7 @@
 		};
 		C09842BD2FF8491700CB8B7E /* XCRemoteSwiftPackageReference "potassiumChannel" */ = {
 			isa = XCRemoteSwiftPackageReference;
-			repositoryURL = "git@github.com:OpenCow42/potassiumChannel.git";
+			repositoryURL = "https://github.com/OpenCow42/potassiumChannel.git";
 			requirement = {
 				kind = upToNextMajorVersion;
 				minimumVersion = 0.2.0;
@@ -1085,7 +1085,7 @@
 		};
 		C0DCD8ED2FFA44AB00520215 /* XCRemoteSwiftPackageReference "swift-concurrency" */ = {
 			isa = XCRemoteSwiftPackageReference;
-			repositoryURL = "git@github.com:OpenCow42/swift-concurrency.git";
+			repositoryURL = "https://github.com/OpenCow42/swift-concurrency.git";
 			requirement = {
 				kind = upToNextMajorVersion;
 				minimumVersion = 1.0.1;
diff --git a/potassiumProvider.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved b/potassiumProvider.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved
index 02d409f..34cbefa 100644
--- a/potassiumProvider.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved
+++ b/potassiumProvider.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved
@@ -4,7 +4,7 @@
     {
       "identity" : "potassiumchannel",
       "kind" : "remoteSourceControl",
-      "location" : "git@github.com:OpenCow42/potassiumChannel.git",
+      "location" : "https://github.com/OpenCow42/potassiumChannel.git",
       "state" : {
         "revision" : "8a6d236d69c381c17f334b66dd4075ef2e0b7d89",
         "version" : "0.2.0"
@@ -22,7 +22,7 @@
     {
       "identity" : "swift-concurrency",
       "kind" : "remoteSourceControl",
-      "location" : "git@github.com:OpenCow42/swift-concurrency.git",
+      "location" : "https://github.com/OpenCow42/swift-concurrency.git",
       "state" : {
         "revision" : "696ea95ad5974bd04f63d353f317cf5ecd9235e8",
         "version" : "1.0.1"