diff --git a/composer.json b/composer.json
index 04ad75b..207be90 100644
--- a/composer.json
+++ b/composer.json
@@ -43,6 +43,7 @@
         "symfony/web-link": "7.4.*",
         "symfony/yaml": "7.4.*",
         "twig/extra-bundle": "^2.12|^3.0",
+        "twig/intl-extra": "^3.26",
         "twig/twig": "^2.12|^3.0"
     },
     "config": {
diff --git a/composer.lock b/composer.lock
index 796d440..bd14e33 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "ef19a7def0151d8b452378a05ec4c324",
+    "content-hash": "3e68f01587473077081d93ce2360e229",
     "packages": [
         {
             "name": "composer/semver",
@@ -7888,6 +7888,70 @@
             ],
             "time": "2026-02-07T08:07:38+00:00"
         },
+        {
+            "name": "twig/intl-extra",
+            "version": "v3.26.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/twigphp/intl-extra.git",
+                "reference": "98f5ad5bff13230fcd2d834d9e79b50adf3ccda9"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/twigphp/intl-extra/zipball/98f5ad5bff13230fcd2d834d9e79b50adf3ccda9",
+                "reference": "98f5ad5bff13230fcd2d834d9e79b50adf3ccda9",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=8.1.0",
+                "symfony/intl": "^5.4|^6.4|^7.0|^8.0",
+                "twig/twig": "^3.13|^4.0"
+            },
+            "require-dev": {
+                "symfony/phpunit-bridge": "^6.4|^7.0"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "Twig\\Extra\\Intl\\": ""
+                },
+                "exclude-from-classmap": [
+                    "/Tests/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Fabien Potencier",
+                    "email": "fabien@symfony.com",
+                    "homepage": "http://fabien.potencier.org",
+                    "role": "Lead Developer"
+                }
+            ],
+            "description": "A Twig extension for Intl",
+            "homepage": "https://twig.symfony.com",
+            "keywords": [
+                "intl",
+                "twig"
+            ],
+            "support": {
+                "source": "https://github.com/twigphp/intl-extra/tree/v3.26.0"
+            },
+            "funding": [
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/twig/twig",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2026-05-19T20:44:48+00:00"
+        },
         {
             "name": "twig/twig",
             "version": "v3.28.0",
diff --git a/config/packages/translation.yaml b/config/packages/translation.yaml
index 490bfc2..32a78fc 100644
--- a/config/packages/translation.yaml
+++ b/config/packages/translation.yaml
@@ -1,5 +1,5 @@
 framework:
-    default_locale: en
+    default_locale: de
     translator:
         default_path: '%kernel.project_dir%/translations'
         providers:
diff --git a/config/packages/twig.yaml b/config/packages/twig.yaml
index 3f795d9..c74c19c 100644
--- a/config/packages/twig.yaml
+++ b/config/packages/twig.yaml
@@ -1,5 +1,7 @@
 twig:
     file_name_pattern: '*.twig'
+    # One theme for the whole app, so it is registered globally rather than per-template.
+    form_themes: ['forms.html.twig']
 
 when@test:
     twig:
diff --git a/config/reference.php b/config/reference.php
index 052ac9b..5f78136 100644
--- a/config/reference.php
+++ b/config/reference.php
@@ -968,7 +968,7 @@ use Symfony\Component\Config\Loader\ParamConfigurator as Param;
  *         enabled?: bool|Param, // Default: false
  *     },
  *     intl?: bool|array{
- *         enabled?: bool|Param, // Default: false
+ *         enabled?: bool|Param, // Default: true
  *     },
  *     cssinliner?: bool|array{
  *         enabled?: bool|Param, // Default: false
diff --git a/templates/forms.html.twig b/templates/forms.html.twig
new file mode 100644
index 0000000..d3d52c3
--- /dev/null
+++ b/templates/forms.html.twig
@@ -0,0 +1,102 @@
+{#
+    Ported from myep's forms_admin.html.twig, trimmed to the blocks this app actually has.
+    Registered globally in config/packages/twig.yaml rather than per-template: myep applies it
+    with {% form_theme %} because it carries two themes, we only have one.
+
+    Deliberately not ported: datepicker_widget, autocomplete_widget, multiselect_widget,
+    money_widget, birthday_widget, abbreviated_date_widget -- all back myep-specific form types
+    and Stimulus controllers that do not exist here.
+#}
+{% use 'form_div_layout.html.twig' %}
+
+{%- block form_row -%}
+    {%- set widget_attr = {} -%}
+    {%- if help is not empty -%}
+        {%- set widget_attr = {attr: {'aria-describedby': id ~ "_help"}} -%}
+    {%- endif -%}
+    <div{% with {attr: row_attr} %}{{ block('attributes') }}{% endwith %}>
+        {{- form_label(form) -}}
+        {{- form_widget(form, widget_attr) -}}
+        {{- form_errors(form) -}}
+        {{- form_help(form) -}}
+    </div>
+{%- endblock form_row -%}
+
+{%- block form_label -%}
+    {% set class = 'block font-bold pb-2' %}
+    {% if errors|length %}
+        {% set class = class ~ ' text-red-500' %}
+    {% endif %}
+    {% set label_attr = label_attr|merge({'class': (label_attr.class|default('') ~ ' ' ~ class)|trim}) %}
+    {{ parent() }}
+{%- endblock form_label -%}
+
+{%- block form_errors -%}
+    {%- if errors|length > 0 -%}
+        <ul class="pb-2">
+            {%- for error in errors -%}
+                <li class="text-red-500">{{ error.message }}</li>
+            {%- endfor -%}
+        </ul>
+    {%- endif -%}
+{%- endblock form_errors -%}
+
+{# The field class is repeated in each block on purpose: a top-level {% set %} in a form theme
+   is not in scope inside its blocks, because each block is rendered with the caller's context. #}
+{%- block form_widget_simple -%}
+    {%- set type = type|default('text') -%}
+    {%- if type != 'hidden' -%}
+        {%- set attr = attr|merge({'class': (attr.class|default('') ~ ' block w-full rounded-md border-0 py-1.5 text-gray-900 shadow-sm ring-1 ring-inset ring-gray-300 focus:ring-2 focus:ring-inset text-sm')|trim }) -%}
+        {%- if errors|length -%}
+            {%- set attr = attr|merge({'class': attr.class ~ ' ring-red-500 placeholder-red-500 focus:ring-red-500' }) -%}
+        {%- else -%}
+            {%- set attr = attr|merge({'class': attr.class ~ ' placeholder:text-gray-400 focus:ring-primary' }) -%}
+        {%- endif -%}
+        {%- if disabled is defined and disabled -%}
+            {%- set attr = attr|merge({'class': attr.class ~ ' cursor-not-allowed' }) -%}
+        {%- endif -%}
+    {%- endif -%}
+    {{ parent() }}
+{%- endblock form_widget_simple -%}
+
+{%- block textarea_widget -%}
+    {%- set attr = attr|merge({'class': (attr.class|default('') ~ ' block w-full rounded-md border-0 py-1.5 text-gray-900 shadow-sm ring-1 ring-inset ring-gray-300 focus:ring-2 focus:ring-inset text-sm')|trim }) -%}
+    {%- if errors|length -%}
+        {%- set attr = attr|merge({'class': attr.class ~ ' ring-red-500 placeholder-red-500 focus:ring-red-500' }) -%}
+    {%- else -%}
+        {%- set attr = attr|merge({'class': attr.class ~ ' placeholder:text-gray-400 focus:ring-primary' }) -%}
+    {%- endif -%}
+    {{ parent() }}
+{%- endblock textarea_widget -%}
+
+{%- block choice_widget_collapsed -%}
+    {%- set attr = attr|merge({'class': (attr.class|default('') ~ ' block w-full rounded-md border-0 py-1.5 text-gray-900 shadow-sm ring-1 ring-inset ring-gray-300 focus:ring-2 focus:ring-inset text-sm')|trim }) -%}
+    {%- if errors|length -%}
+        {%- set attr = attr|merge({'class': attr.class ~ ' ring-red-500 focus:ring-red-500' }) -%}
+    {%- else -%}
+        {%- set attr = attr|merge({'class': attr.class ~ ' focus:ring-primary' }) -%}
+    {%- endif -%}
+    {{ parent() }}
+{%- endblock choice_widget_collapsed -%}
+
+{%- block checkbox_widget -%}
+    {%- set attr = attr|merge({'class': (attr.class|default('') ~ ' h-4 w-4 rounded text-primary')|trim }) -%}
+    {%- if errors|length -%}
+        {%- set attr = attr|merge({'class': attr.class ~ ' border-red-500 text-red-500 focus:ring-red-500' }) -%}
+    {%- else -%}
+        {%- set attr = attr|merge({'class': attr.class ~ ' border-gray-300 focus:ring-primary' }) -%}
+    {%- endif -%}
+    {{ parent() }}
+{%- endblock checkbox_widget -%}
+
+{% block checkbox_row %}
+    <div class="relative flex items-start">
+        <div class="flex h-6 items-center">
+            {{ form_widget(form) }}
+        </div>
+        <div class="ml-3 leading-6 {{ errors|length ? 'text-red-500' : '' }}">
+            <label for="{{ form.vars.id }}">{{ form.vars.label }}</label>
+            {{- form_errors(form) -}}
+        </div>
+    </div>
+{% endblock %}