Clean up usage and definition of site variables

sites/docs/lib/src/utils/page_source_info.dart

@@ -26,7 +26,6 @@ extension PageSourceInfoExtension on Page {
     final pageUrl = url;
     final pageData = data.page;
     final siteData = data.site;
-    final branch = siteData['branch'] as String? ?? 'main';
     final repoLinks = siteData['repo'] as Map<String, Object?>? ?? {};
     final repoUrl =
         repoLinks['this'] as String? ?? 'https://github.com/flutter/website';
@@ -38,7 +37,7 @@ extension PageSourceInfoExtension on Page {
     final String issueUrl;
 
     if (inputPath != null) {
-      pageSourceUrl = '$repoUrl/blob/$branch/${inputPath.replaceAll('./', '')}';
+      pageSourceUrl = '$repoUrl/blob/main/${inputPath.replaceAll('./', '')}';
       issueUrl =
           '$repoUrl/issues/new?template=1_page_issue.yml&'
           'page-url=$fullPageUrl&'

sites/docs/src/_includes/docs/swift-package-manager/migrate-ios-project-manually.md

@@ -57,4 +57,4 @@ Migrating to SwiftPM requires updating the
 1. Ensure that the app runs on the command line with `flutter run`.
 
 [turn on Swift Package Manager]: /packages-and-plugins/swift-package-manager/for-app-developers/#how-to-turn-on-swift-package-manager
-[file an issue]: {{site.github}}/flutter/flutter/issues/new?template=2_bug.yml
+[file an issue]: {{site.repo.flutter}}/issues/new?template=2_bug.yml

sites/docs/src/_includes/docs/swift-package-manager/migrate-macos-project-manually.md

@@ -56,4 +56,4 @@ Migrating to SwiftPM requires updating the
 
 1. Ensure that the app runs on the command line with `flutter run`.
 
-[file an issue]: {{site.github}}/flutter/flutter/issues/new?template=2_bug.yml
+[file an issue]: {{site.repo.flutter}}/issues/new?template=2_bug.yml

sites/docs/src/_includes/docs/swift-package-manager/migrate-objective-c-plugin.md

@@ -485,7 +485,7 @@ The example below uses `ios`, replace `ios` with `macos` or `darwin`, as applica
 
 [`PrivacyInfo.xcprivacy` file]: https://developer.apple.com/documentation/bundleresources/privacy_manifest_files
 [`public_header_files`]: https://guides.cocoapods.org/syntax/podspec.html#public_header_files
-[Swift Package Manager's documentation]: {{site.github}}/apple/swift-package-manager/blob/main/Documentation/Usage.md#creating-c-language-targets
+[Swift Package Manager's documentation]: https://github.com/apple/swift-package-manager/blob/main/Documentation/Usage.md#creating-c-language-targets
 [Pigeon]: https://pub.dev/packages/pigeon
 [CocoaPods `dependency`]: https://guides.cocoapods.org/syntax/podspec.html#dependency
 [Swift Package Manager dependencies]: https://developer.apple.com/documentation/packagedescription/package/dependency

sites/docs/src/content/add-to-app/android/plugin-setup.md

@@ -184,5 +184,5 @@ existing app and Flutter module plugin.
 
 [ExoPlayer from the video_player plugin]: {{site.repo.packages}}/blob/main/packages/video_player/video_player_android/android/build.gradle
 [firebase_crashlytics]: {{site.pub}}/packages/firebase_crashlytics
-[Gradle file]: {{site.github}}/firebase/flutterfire/blob/bdb95fcacf7cf077d162d2f267eee54a8b0be3bc/packages/firebase_crashlytics/android/build.gradle#L40
+[Gradle file]: {{site.repo.flutterfire}}/blob/bdb95fcacf7cf077d162d2f267eee54a8b0be3bc/packages/firebase_crashlytics/android/build.gradle#L40
 [resolves dependency version conflicts]: https://docs.gradle.org/current/userguide/dependency_resolution.html#sub:resolution-strategy

sites/docs/src/content/add-to-app/index.md

@@ -219,7 +219,7 @@ Web limitations:
 [`FlutterActivity`]: {{site.api}}/javadoc/io/flutter/embedding/android/FlutterActivity.html
 [java-engine]: {{site.api}}/javadoc/io/flutter/embedding/engine/FlutterEngine.html
 [ios-engine]: {{site.api}}/ios-embedder/interface_flutter_engine.html
-[FlutterFire]: {{site.github}}/firebase/flutterfire/tree/main/packages
+[FlutterFire]: {{site.repo.flutterfire}}/tree/main/packages
 [`FlutterFragment`]: {{site.api}}/javadoc/io/flutter/embedding/android/FlutterFragment.html
 [`FlutterPlugin`]: {{site.api}}/javadoc/io/flutter/embedding/engine/plugins/FlutterPlugin.html
 [`FlutterViewController`]: {{site.api}}/ios-embedder/interface_flutter_view_controller.html

sites/docs/src/content/add-to-app/ios/project-setup-legacy.md

@@ -204,7 +204,7 @@ You can now [add a Flutter screen][] to your existing iOS app.
 [CocoaPods]: https://cocoapods.org/
 [app-size]: /resources/faq#how-big-is-the-flutter-engine
 [VS Code]: /tools/vs-code
-[News Feed app]: {{site.github}}/flutter/put-flutter-to-work/tree/022208184ec2623af2d113d13d90e8e1ce722365
+[News Feed app]: https://github.com/flutter/put-flutter-to-work/tree/022208184ec2623af2d113d13d90e8e1ce722365
 [Debugging your add-to-app module]: /add-to-app/debugging/
 [apple-silicon]: https://support.apple.com/en-us/116943
 [read-only]: https://blog.cocoapods.org/CocoaPods-Specs-Repo/

sites/docs/src/content/add-to-app/performance.md

@@ -142,6 +142,6 @@ OpenGL (or Vulkan or Metal) GPU instructions.
 [multiple Flutters]: /add-to-app/multiple-flutters
 [`runApp()`]: {{site.api}}/flutter/widgets/runApp.html
 [`runWithEntrypoint:`]: {{site.api}}/ios-embedder/interface_flutter_engine.html#a019d6b3037eff6cfd584fb2eb8e9035e
-[snapshot]: {{site.github}}/dart-lang/sdk/wiki/Snapshots
+[snapshot]: {{site.repo.dart-sdk}}/wiki/Snapshots
 [`startActivity()`]: {{site.android-dev}}/reference/android/content/Context#startActivity(android.content.Intent)
 [`Surface`]: {{site.android-dev}}/reference/android/view/Surface

sites/docs/src/content/ai/ai-toolkit/chat-client-sample.md

@@ -34,4 +34,4 @@ To build and run the sample, follow the instructions in the [AI Chat README][].
 {% comment %} TODO: If Mit agrees, move this to an official Flutter repo Chris
 didn't want to do it so close to release {% endcomment %}
 
-[AI Chat README]: {{site.github}}/csells/flutter_ai_chat
+[AI Chat README]: https://github.com/csells/flutter_ai_chat

sites/docs/src/content/ai/ai-toolkit/custom-llm-providers.md

@@ -279,6 +279,6 @@ the user's prompt and attachments as Markdown
 to send back to the user as its response.
 
 [Echo example app]:
-    {{site.github}}/flutter/ai/blob/main/lib/src/providers/implementations/echo_provider.dart
+    https://github.com/flutter/ai/blob/main/lib/src/providers/implementations/echo_provider.dart
 [Firebase provider]:
     {{site.pub-api}}/flutter_ai_toolkit/latest/flutter_ai_toolkit/FirebaseProvider-class.html

sites/docs/src/content/ai/ai-toolkit/feature-integration.md

@@ -75,7 +75,7 @@ To see a complete example of setting the welcome message, check out the [welcome
 example][].
 
 [welcome example]:
-    {{site.github}}/flutter/ai/blob/main/example/lib/welcome/welcome.dart
+    https://github.com/flutter/ai/blob/main/example/lib/welcome/welcome.dart
 
 ## Suggested prompts
 
@@ -116,7 +116,7 @@ To see a complete example of setting up suggestions for the user, take a look at
 the [suggestions example][].
 
 [suggestions example]:
-    {{site.github}}/flutter/ai/blob/main/example/lib/suggestions/suggestions.dart
+    https://github.com/flutter/ai/blob/main/example/lib/suggestions/suggestions.dart
 
 ## LLM instructions
 
@@ -187,7 +187,7 @@ To use function calling, you need to define your tools and pass them to the
 `FirebaseProvider`. Check out the [function calling example][] for details.
 
 [function calling example]:
-    {{site.github}}/flutter/ai/blob/main/example/lib/function_calls/function_calls.dart
+    https://github.com/flutter/ai/blob/main/example/lib/function_calls/function_calls.dart
 
 ## Disable attachments and audio input
 
@@ -235,7 +235,7 @@ LlmChatView(
 Check out the [custom STT example][] for details.
 
 [custom STT example]:
-    {{site.github}}/flutter/ai/tree/main/example/lib/custom_stt
+    https://github.com/flutter/ai/tree/main/example/lib/custom_stt
 
 ## Manage cancel or error behavior
 
@@ -356,8 +356,8 @@ To see history in action, check out the [recipes example app][] and the [history
 example app][].
 
 [history example app]:
-    {{site.github}}/flutter/ai/blob/main/example/lib/history/history.dart
-[recipes example app]: {{site.github}}/flutter/ai/tree/main/example/lib/recipes
+    https://github.com/flutter/ai/blob/main/example/lib/history/history.dart
+[recipes example app]: https://github.com/flutter/ai/tree/main/example/lib/recipes
 
 ## Chat serialization/deserialization
 
@@ -413,7 +413,7 @@ every time and, in the face of binary attachments, that could take a while.
 To see this in action, check out the [history example app][].
 
 [history example app]:
-    {{site.github}}/flutter/ai/blob/main/example/lib/history/history.dart
+    https://github.com/flutter/ai/blob/main/example/lib/history/history.dart
 
 ## Custom response widgets
 
@@ -592,11 +592,11 @@ example][custom-ex] and the [styles example][styles-ex], check out the [dark
 mode example][] and the [demo app][].
 
 [custom-ex]:
-    {{site.github}}/flutter/ai/blob/main/example/lib/custom_styles/custom_styles.dart
-[styles-ex]: {{site.github}}/flutter/ai/blob/main/example/lib/styles/styles.dart
+    https://github.com/flutter/ai/blob/main/example/lib/custom_styles/custom_styles.dart
+[styles-ex]: https://github.com/flutter/ai/blob/main/example/lib/styles/styles.dart
 [dark mode example]:
-    {{site.github}}/flutter/ai/blob/main/example/lib/dark_mode/dark_mode.dart
-[demo app]: {{site.github}}/flutter/ai#online-demo
+    https://github.com/flutter/ai/blob/main/example/lib/dark_mode/dark_mode.dart
+[demo app]: https://github.com/flutter/ai#online-demo
 [reference documentation]:
     {{site.pub-api}}/flutter_ai_toolkit/latest/flutter_ai_toolkit/LlmChatViewStyle-class.html
 
@@ -685,7 +685,7 @@ To see this in action, check out the [Edit Recipe page][] of the recipes
 example.
 
 [Edit Recipe page]:
-    {{site.github}}/flutter/ai/blob/main/example/lib/recipes/pages/edit_recipe_page.dart
+    https://github.com/flutter/ai/blob/main/example/lib/recipes/pages/edit_recipe_page.dart
 
 ## Rerouting prompts
 
@@ -744,4 +744,4 @@ Retrieval Augmented Generation (RAG).
 To see this in action, check out the [logging example app][].
 
 [logging example app]:
-    {{site.github}}/flutter/ai/blob/main/example/lib/logging/logging.dart
+    https://github.com/flutter/ai/blob/main/example/lib/logging/logging.dart

sites/docs/src/content/ai/ai-toolkit/index.md

@@ -47,7 +47,7 @@ Here's what the demo example looks like hosting the AI Toolkit:
 
 The [source code for this demo][src-code] is available in the repo on GitHub.
 
-[src-code]: {{site.github}}/flutter/ai/blob/main/example/lib/demo/demo.dart
+[src-code]: https://github.com/flutter/ai/blob/main/example/lib/demo/demo.dart
 
 ## Get started
 
@@ -163,9 +163,9 @@ examples.
 [options]:
     https://firebase.google.com/docs/vertex-ai/gemini-models#available-model-names
 [gemini.dart]:
-    {{site.github}}/flutter/ai/blob/main/example/lib/gemini/gemini.dart
+    https://github.com/flutter/ai/blob/main/example/lib/gemini/gemini.dart
 [vertex.dart]:
-    {{site.github}}/flutter/ai/blob/main/example/lib/vertex/vertex.dart
+    https://github.com/flutter/ai/blob/main/example/lib/vertex/vertex.dart
 </li>
 
 <li><b>Set up device permissions</b>
@@ -247,7 +247,7 @@ the AI Toolkit is just as robust and useful as it can be for your real-world
 apps.
 
 [add-fb]: https://firebase.google.com/docs/flutter/setup
-[example apps]: {{site.github}}/flutter/ai/tree/main/example/lib
-[file-issues]: {{site.github}}/flutter/ai/issues
-[submit]: {{site.github}}/flutter/ai/pulls
-[vertex-ex]: {{site.github}}/flutter/ai/blob/main/example/lib/vertex/vertex.dart
+[example apps]: https://github.com/flutter/ai/tree/main/example/lib
+[file-issues]: https://github.com/flutter/ai/issues
+[submit]: https://github.com/flutter/ai/pulls
+[vertex-ex]: https://github.com/flutter/ai/blob/main/example/lib/vertex/vertex.dart

sites/docs/src/content/ai/antigravity.md

@@ -112,6 +112,6 @@ when you prompt it to modify your app.
 This enables a hands-free, "prompt-to-reload" workflow
 that reduces context switching and development latency.
 
-[ag-video]: {{site.youtube-site}}/watch?v=YY2w2JEX2xk&t=1s
+[ag-video]: {{site.yt.watch}}?v=YY2w2JEX2xk&t=1s
 [Create a new Flutter app]: /reference/create-new-app#antigravity
 [vs-code]: /tools/vs-code

sites/docs/src/content/ai/best-practices/developer-experience.md

@@ -154,5 +154,5 @@ Doing this a few times keeps the code in good shape for AI agents and humans
 alike.
 
 
-[requirements]: {{site.github}}/flutter/demos/blob/main/crossword_companion/specs/requirements.md
-[tasks-spec]: {{site.github}}/flutter/demos/blob/main/crossword_companion/specs/tasks.md
+[requirements]: {{site.repo.demos}}/blob/main/crossword_companion/specs/requirements.md
+[tasks-spec]: {{site.repo.demos}}/blob/main/crossword_companion/specs/tasks.md

sites/docs/src/content/ai/best-practices/index.md

@@ -60,4 +60,4 @@ practices to use when you're building your own AI apps with Flutter. So let's
 get to it!
 
 
-[crossword-app]: {{site.github}}/flutter/demos/tree/main/crossword_companion
+[crossword-app]: {{site.repo.demos}}/tree/main/crossword_companion

sites/docs/src/content/ai/best-practices/prompting.md

@@ -201,9 +201,9 @@ use [the dotprompt_dart package][dotprompt-dart].
 
 
 
-[crossword-readme]: {{site.github}}/flutter/demos/tree/main/crossword_companion
+[crossword-readme]: {{site.repo.demos}}/tree/main/crossword_companion
 [gemini-app]: https://gemini.google.com/app
 [ai-toolkit]: /ai-toolkit
-[crossword-demo]: {{site.github}}/flutter/demos/raw/refs/heads/main/crossword_companion/readme/screen-recording.mov
+[crossword-demo]: {{site.repo.demos}}/raw/refs/heads/main/crossword_companion/readme/screen-recording.mov
 [dotprompt]: https://google.github.io/dotprompt/getting-started/
 [dotprompt-dart]: {{site.pub-pkg}}/dotprompt_dart

sites/docs/src/content/ai/create-with-ai.md

@@ -52,7 +52,7 @@ resources:
   AI-powered features in Flutter.
 
 [Firebase AI Logic]: {{site.firebase}}/docs/ai-logic
-[Firebase AI Logic Showcase]: {{site.github}}/flutter/demos/tree/main/firebase_ai_logic_showcase
+[Firebase AI Logic Showcase]: {{site.repo.demos}}/tree/main/firebase_ai_logic_showcase
 [firebase-ai-logic-docs]: {{site.firebase}}/docs/ai-logic/get-started
 [Genkit Dart]: https://genkit.dev
 [genkit-dart-quickstart]: https://genkit.dev/docs/dart/overview

sites/docs/src/content/contribute/index.md

@@ -159,7 +159,7 @@ and account for any [necessary migrations][].
 
 [switch-channels]: /install/upgrade#change-channels
 [beta-channel]: /install/upgrade#the-beta-channel
-[report-bugs]: {{site.github}}/flutter/flutter/issues/new/choose
+[report-bugs]: {{site.repo.flutter}}/issues/new/choose
 [necessary migrations]: /release/breaking-changes
 
 ## Contribute code
@@ -233,24 +233,24 @@ you might want to contribute to:
 
 - The pub.dev site
   - **Live site:** [`pub.dev`]({{site.pub}})
-  - **Repository:** [`dart-lang/pub-dev`]({{site.github}}/dart-lang/pub-dev)
-  - **Contribution guide:** [`CONTRIBUTING.md`]({{site.github}}/dart-lang/pub-dev/blob/master/CONTRIBUTING.md)
+  - **Repository:** [`dart-lang/pub-dev`](https://github.com/dart-lang/pub-dev)
+  - **Contribution guide:** [`CONTRIBUTING.md`](https://github.com/dart-lang/pub-dev/blob/master/CONTRIBUTING.md)
 - The Flutter documentation site
   - **Live site:** [`docs.flutter.dev`]({{site.url}})
   - **Repository:** [`flutter/website`]({{site.repo.this}})
-  - **Contribution guide:** [`CONTRIBUTING.md`]({{site.github}}/flutter/website/blob/main/CONTRIBUTING.md)
+  - **Contribution guide:** [`CONTRIBUTING.md`]({{site.repo.this}}/blob/main/CONTRIBUTING.md)
 - The Dart documentation site
   - **Live site:** [`dart.dev`]({{site.dart-site}})
-  - **Repository:** [`dart-lang/site-www`]({{site.github}}/dart-lang/site-www)
-  - **Contribution guide:** [`CONTRIBUTING.md`]({{site.github}}/dart-lang/site-www/blob/main/CONTRIBUTING.md)
+  - **Repository:** [`dart-lang/site-www`](https://github.com/dart-lang/site-www)
+  - **Contribution guide:** [`CONTRIBUTING.md`](https://github.com/dart-lang/site-www/blob/main/CONTRIBUTING.md)
 - DartPad
   - **Live site:** [`dartpad.dev`]({{site.dartpad}})
-  - **Repository:** [`dart-lang/dart-pad`]({{site.github}}/dart-lang/dart-pad)
-  - **Contribution guide:** [`CONTRIBUTING.md`]({{site.github}}/dart-lang/dart-pad/blob/main/CONTRIBUTING.md)
+  - **Repository:** [`dart-lang/dart-pad`](https://github.com/dart-lang/dart-pad)
+  - **Contribution guide:** [`CONTRIBUTING.md`](https://github.com/dart-lang/dart-pad/blob/main/CONTRIBUTING.md)
 - The `dartdoc` tool
   - **Live site:** [`api.flutter.dev`]({{site.api}})
-  - **Repository:** [`dart-lang/dartdoc`]({{site.github}}/dart-lang/dartdoc)
-  - **Contribution guide:** [`CONTRIBUTING.md`]({{site.github}}/dart-lang/dartdoc/blob/main/CONTRIBUTING.md)
+  - **Repository:** [`dart-lang/dartdoc`](https://github.com/dart-lang/dartdoc)
+  - **Contribution guide:** [`CONTRIBUTING.md`](https://github.com/dart-lang/dartdoc/blob/main/CONTRIBUTING.md)
 
 ### Dart SDK
 
@@ -262,8 +262,8 @@ Dart's contribution workflow is slightly different,
 so if you're interested, make sure to check out its
 [contribution][dart-contribute] and [building][dart-build] guides.
 
-[dart-contribute]: {{site.github}}/dart-lang/sdk/blob/main/CONTRIBUTING.md
-[dart-build]: {{site.github}}/dart-lang/sdk/blob/main/docs/Building.md
+[dart-contribute]: {{site.repo.dart-sdk}}/blob/main/CONTRIBUTING.md
+[dart-build]: {{site.repo.dart-sdk}}/blob/main/docs/Building.md
 
 ### Code samples
 
@@ -324,7 +324,7 @@ check out the [`dart-lang/site-www` contribution docs][dart-dev-contribute].
 
 [website-contribute]: {{site.repo.this}}/blob/main/CONTRIBUTING.md
 [Dart website]: {{site.dart-site}}
-[dart-dev-contribute]: {{site.github}}/dart-lang/site-www/tree/main?tab=readme-ov-file#getting-started
+[dart-dev-contribute]: https://github.com/dart-lang/site-www/tree/main?tab=readme-ov-file#getting-started
 
 ## Triage issues
 

sites/docs/src/content/cookbook/effects/shimmer-loading.md

@@ -897,7 +897,7 @@ class CardListItem extends StatelessWidget {
 
 
 [`AnimationController`]: {{site.api}}/flutter/animation/AnimationController-class.html
-[cloning the example code]: {{site.github}}/flutter/codelabs
+[cloning the example code]: https://github.com/flutter/codelabs
 [issue 44152]: {{site.repo.flutter}}/issues/44152
 [`LinearGradient`]: {{site.api}}/flutter/painting/LinearGradient-class.html
 [`Listenable`]: {{site.api}}/flutter/foundation/Listenable-class.html

sites/docs/src/content/cookbook/games/achievements-leaderboard.md

@@ -379,6 +379,6 @@ The Flutter Casual Games Toolkit includes the following templates:
   where the player endlessly runs, avoiding pitfalls
   and gaining rewards
 
-[basic]: {{site.github}}/flutter/games/tree/main/templates/basic#readme
-[card]: {{site.github}}/flutter/games/tree/main/templates/card#readme
-[endless runner]: {{site.github}}/flutter/games/tree/main/templates/endless_runner#readme
+[basic]: {{site.repo.games}}/tree/main/templates/basic#readme
+[card]: {{site.repo.games}}/tree/main/templates/card#readme
+[endless runner]: {{site.repo.games}}/tree/main/templates/endless_runner#readme

sites/docs/src/content/cookbook/games/firestore-multiplayer.md

@@ -80,8 +80,8 @@ You can ignore this step and follow the recipe with your own game
 project. Adapt the code at appropriate places.
 :::
 
-[`card`]: {{site.github}}/flutter/games/tree/main/templates/card#readme
-[`flutter/games` repository]: {{site.github}}/flutter/games
+[`card`]: {{site.repo.games}}/tree/main/templates/card#readme
+[`flutter/games` repository]: {{site.repo.games}}
 
 ## 2. Install Firestore
 

sites/docs/src/content/cookbook/maintenance/error-reporting.md

@@ -111,7 +111,7 @@ To view a working example,
 see the [Sentry flutter example][] app.
 
 
-[Sentry flutter example]: {{site.github}}/getsentry/sentry-dart/tree/main/flutter/example
+[Sentry flutter example]: https://github.com/getsentry/sentry-dart/tree/main/flutter/example
 [Create an account with Sentry]: https://sentry.io/signup/
 [Bugsnag]: https://www.bugsnag.com/platforms/flutter
 [Datadog]: https://docs.datadoghq.com/real_user_monitoring/flutter/

sites/docs/src/content/cookbook/navigation/set-up-app-links.md

@@ -226,7 +226,7 @@ launches and displays the details screen:
 
 Source code: [deeplink_cookbook][]
 
-[deeplink_cookbook]: {{site.github}}/flutter/codelabs/tree/main/deeplink_cookbook
+[deeplink_cookbook]: https://github.com/flutter/codelabs/tree/main/deeplink_cookbook
 [Firebase Hosting]: {{site.firebase}}/docs/hosting
 [go_router]: {{site.pub}}/packages/go_router
 [GitHub Pages]: https://pages.github.com

sites/docs/src/content/cookbook/plugins/picture-using-camera.md

@@ -27,7 +27,7 @@ check out the Google I/O 2024 talk,
 
 [`camera_android_camerax`]: {{site.pub-pkg}}/camera_android_camerax
 [CameraX]: https://developer.android.com/training/camerax
-[camerax-video]: {{site.youtube-site}}/watch?v=d1sRCa5k2Sg&t=1s
+[camerax-video]: {{site.yt.watch}}?v=d1sRCa5k2Sg&t=1s
 
 This recipe demonstrates how to use the `camera` plugin to display a preview,
 take a photo, and display it using the following steps:

sites/docs/src/content/data-and-backend/firebase.md

@@ -44,7 +44,7 @@ The Flutter community created the following useful resources.
 * [Flutter: Firebase Tutorial Part 1 - Auth and Sign in][video4]
 
 [article]: {{site.flutter-blog}}/must-try-use-firebase-to-host-your-flutter-app-on-the-web-852ee533a469
-[chat app]: {{site.medium}}/flutter-community/building-a-chat-app-with-flutter-and-firebase-from-scratch-9eaa7f41782e
+[chat app]: https://medium.com/flutter-community/building-a-chat-app-with-flutter-and-firebase-from-scratch-9eaa7f41782e
 [codelab1]: {{site.codelabs}}/codelabs/firebase-get-to-know-flutter
 [Firebase plugins]: {{site.firebase}}/docs/flutter/setup#available-plugins
 [started]: {{site.firebase}}/docs/flutter/setup