diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c14cee6..9dec7ad 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,7 +11,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: Set up PHP
         uses: shivammathur/setup-php@v2
@@ -20,7 +20,7 @@ jobs:
           coverage: none
 
       - name: Download dependencies
-        uses: ramsey/composer-install@v1
+        uses: ramsey/composer-install@v2
 
       - name: Run tests
         run: ./bin/console cache:warmup --env dev
diff --git a/.gitignore b/.gitignore
index 6a7987a..7c04f2c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -20,4 +20,8 @@
 npm-debug.log
 yarn-error.log
 ###< symfony/webpack-encore-bundle ###
-composer.lock
\ No newline at end of file
+composer.lock
+###> symfony/asset-mapper ###
+/public/assets/
+/assets/vendor/
+###< symfony/asset-mapper ###
diff --git a/composer.json b/composer.json
index 64b20a9..fd11c05 100644
--- a/composer.json
+++ b/composer.json
@@ -41,6 +41,7 @@
         "symfony/validator": "*",
         "symfony/web-link": "*",
         "symfony/webpack-encore-bundle": "^2.1",
+        "symfony/workflow": "*",
         "symfony/yaml": "*",
         "twig/extra-bundle": "^3.0",
         "twig/twig": "^3.0"
@@ -85,7 +86,8 @@
     "scripts": {
         "auto-scripts": {
             "cache:clear": "symfony-cmd",
-            "assets:install %PUBLIC_DIR%": "symfony-cmd"
+            "assets:install %PUBLIC_DIR%": "symfony-cmd",
+            "importmap:install": "symfony-cmd"
         },
         "post-install-cmd": [
             "@auto-scripts"
diff --git a/config/packages/asset_mapper.yaml b/config/packages/asset_mapper.yaml
new file mode 100644
index 0000000..d1ac653
--- /dev/null
+++ b/config/packages/asset_mapper.yaml
@@ -0,0 +1,5 @@
+framework:
+    asset_mapper:
+        # The paths to make available to the asset mapper.
+        paths:
+            - assets/
diff --git a/config/packages/workflow.yaml b/config/packages/workflow.yaml
new file mode 100644
index 0000000..855df59
--- /dev/null
+++ b/config/packages/workflow.yaml
@@ -0,0 +1,2 @@
+framework:
+    workflows: null
diff --git a/importmap.php b/importmap.php
new file mode 100644
index 0000000..70ebf14
--- /dev/null
+++ b/importmap.php
@@ -0,0 +1,19 @@
+<?php
+
+/**
+ * Returns the importmap for this application.
+ *
+ * - "path" is a path inside the asset mapper system. Use the
+ *     "debug:asset-map" command to see the full list of paths.
+ *
+ * - "entrypoint" (JavaScript only) set to true for any module that will
+ *     be used as an "entrypoint" (and passed to the importmap() Twig function).
+ *
+ * The "importmap:require" command can be used to add new entries to this file.
+ */
+return [
+    'app' => [
+        'path' => './assets/app.js',
+        'entrypoint' => true,
+    ],
+];
diff --git a/symfony.lock b/symfony.lock
index d6153e6..41e798a 100644
--- a/symfony.lock
+++ b/symfony.lock
@@ -125,6 +125,21 @@
     "symfony/asset": {
         "version": "v5.4.0"
     },
+    "symfony/asset-mapper": {
+        "version": "7.1",
+        "recipe": {
+            "repo": "github.com/symfony/recipes",
+            "branch": "main",
+            "version": "6.4",
+            "ref": "6c28c471640cc2c6e60812ebcb961c526ef8997f"
+        },
+        "files": [
+            "assets/app.js",
+            "assets/styles/app.css",
+            "config/packages/asset_mapper.yaml",
+            "importmap.php"
+        ]
+    },
     "symfony/browser-kit": {
         "version": "v5.4.0"
     },
@@ -559,6 +574,18 @@
             "webpack.config.js"
         ]
     },
+    "symfony/workflow": {
+        "version": "5.4",
+        "recipe": {
+            "repo": "github.com/symfony/recipes",
+            "branch": "main",
+            "version": "3.3",
+            "ref": "3b2f8ca32a07fcb00f899649053943fa3d8bbfb6"
+        },
+        "files": [
+            "config/packages/workflow.yaml"
+        ]
+    },
     "symfony/yaml": {
         "version": "v5.4.0"
     },
diff --git a/templates/base.html.twig b/templates/base.html.twig
index 16d7273..eb686a8 100644
--- a/templates/base.html.twig
+++ b/templates/base.html.twig
@@ -10,6 +10,7 @@
         {% endblock %}
 
         {% block javascripts %}
+            {% block importmap %}{{ importmap('app') }}{% endblock %}
             {#{{ encore_entry_script_tags('app') }}#}
         {% endblock %}
     </head>