diff --git a/.gitignore b/.gitignore
index bd315f72..eeb2b0f6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -125,3 +125,5 @@ app.*.map.json
 !.idea/codeStyles/
 !.idea/dictionaries/
 !.idea/runConfigurations/
+
+.firebase
diff --git a/README.md b/README.md
index b51926b5..b91a1c98 100644
--- a/README.md
+++ b/README.md
@@ -154,6 +154,33 @@ Update the `CFBundleLocalizations` array in the `Info.plist` at `ios/Runner/Info
 }
 ```
 
+### Deploy application to Firebase hosting
+
+Follow the following steps to deploy the application.
+
+## Firebase CLI
+
+Install and authenticate with [Firebase CLI tools](https://firebase.google.com/docs/cli)
+
+## Build the project using the desired environment
+
+```bash
+# Development
+$ flutter build web --release --target lib/main_development.dart
+
+# Staging
+$ flutter build web --release --target lib/main_staging.dart
+
+# Production
+$ flutter build web --release --target lib/main_production.dart
+```
+
+## Deploy
+
+```bash
+$ firebase deploy
+```
+
 [coverage_badge]: coverage_badge.svg
 [flutter_localizations_link]: https://api.flutter.dev/flutter/flutter_localizations/flutter_localizations-library.html
 [internationalization_link]: https://flutter.dev/docs/development/accessibility-and-localization/internationalization
diff --git a/firebase.json b/firebase.json
new file mode 100644
index 00000000..0d25a779
--- /dev/null
+++ b/firebase.json
@@ -0,0 +1,10 @@
+{
+  "hosting": {
+    "public": "build/web",
+    "ignore": [
+      "firebase.json",
+      "**/.*",
+      "**/node_modules/**"
+    ]
+  }
+}
diff --git a/lib/game/components/wall.dart b/lib/game/components/wall.dart
index 7bf58273..b784b8cb 100644
--- a/lib/game/components/wall.dart
+++ b/lib/game/components/wall.dart
@@ -3,6 +3,9 @@
 import 'package:flame_forge2d/flame_forge2d.dart';
 import 'package:pinball/game/components/components.dart';
 
+/// {@template wall}
+/// A continuos generic and [BodyType.static] barrier that divides a game area.
+/// {@endtemplate}
 class Wall extends BodyComponent {
   Wall({
     required this.start,
@@ -29,6 +32,12 @@ class Wall extends BodyComponent {
   }
 }
 
+/// {@template bottom_wall}
+/// [Wall] located at the bottom of the board.
+///
+/// Collisions with [BottomWall] are listened by
+/// [BottomWallBallContactCallback].
+/// {@endtemplate}
 class BottomWall extends Wall {
   BottomWall(Forge2DGame game)
       : super(
@@ -40,6 +49,9 @@ class BottomWall extends Wall {
         );
 }
 
+/// {@template bottom_wall_ball_contact_callback}
+/// Listens when a [Ball] falls into a [BottomWall].
+/// {@endtemplate}
 class BottomWallBallContactCallback extends ContactCallback<Ball, BottomWall> {
   @override
   void begin(Ball ball, BottomWall wall, Contact contact) {