diff --git a/.gitignore b/.gitignore
index b71b1ea..656cf1b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -22,3 +22,4 @@
 Homestead.json
 Homestead.yaml
 Thumbs.db
+/docker-compose.yaml
diff --git a/Makefile b/Makefile
index fbaa382..8baf640 100644
--- a/Makefile
+++ b/Makefile
@@ -2,6 +2,11 @@
 
 FRONTEND_DIR ?= .
 
+ setup:
+	rm -f docker-compose.yaml
+	cp docker-compose.dev docker-compose.yaml
+	docker-compose up -d
+
 frontend:
 	@cd $(FRONTEND_DIR) && \
 	export QT_QPA_PLATFORM=offscreen && \
diff --git a/app/Enumerations/CostUnitType.php b/app/Enumerations/CostUnitType.php
new file mode 100644
index 0000000..855409b
--- /dev/null
+++ b/app/Enumerations/CostUnitType.php
@@ -0,0 +1,21 @@
+<?php
+
+namespace App\Enumerations;
+
+use App\Scopes\CommonModel;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+
+/**
+ * @property string $slug
+ * @property string $name
+ */
+class CostUnitType extends CommonModel
+{
+    public const COST_UNIT_TYPE_EVENT = 'event';
+    public const COST_UNIT_TYPE_RUNNING_JOB = 'running_job';
+
+    protected $fillable = [
+        'slug',
+        'name',
+    ];
+}
diff --git a/app/Enumerations/EatingHabit.php b/app/Enumerations/EatingHabit.php
new file mode 100644
index 0000000..1a4c3e2
--- /dev/null
+++ b/app/Enumerations/EatingHabit.php
@@ -0,0 +1,22 @@
+<?php
+
+namespace App\Enumerations;
+
+use App\Scopes\CommonModel;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+
+/**
+ * @property string $slug
+ * @property string $name
+ */
+class EatingHabit extends CommonModel
+{
+    public const string EATING_HABIT_OMNIVOR = 'EATING_HABIT_OMNIVOR';
+    public const string EATING_HABIT_VEGETARIAN = 'EATING_HABIT_VEGETARIAN';
+    public const string EATING_HABIT_VEGAN = 'EATING_HABIT_VEGAN';
+
+    protected $fillable = [
+        'slug',
+        'name',
+    ];
+}
diff --git a/app/Enumerations/FirstAidPermission.php b/app/Enumerations/FirstAidPermission.php
new file mode 100644
index 0000000..c18cfc6
--- /dev/null
+++ b/app/Enumerations/FirstAidPermission.php
@@ -0,0 +1,22 @@
+<?php
+
+namespace App\Enumerations;
+
+use App\Scopes\CommonModel;
+
+/**
+ * @property string $slug
+ * @property string $name
+ */
+class FirstAidPermission extends CommonModel
+{
+    public const string FIRST_AID_PERMISSION_ALLOWED = 'FIRST_AID_PERMISSION_ALLOWED';
+    public const string FIRST_AID_PERMISSION_DENIED = 'FIRST_AID_PERMISSION_DENIED';
+
+
+    protected $fillable = [
+        'slug',
+        'name',
+        'description'
+    ];
+}
diff --git a/app/Enumerations/SwimmingPermission.php b/app/Enumerations/SwimmingPermission.php
new file mode 100644
index 0000000..a2e74b3
--- /dev/null
+++ b/app/Enumerations/SwimmingPermission.php
@@ -0,0 +1,26 @@
+<?php
+
+namespace App\Enumerations;
+
+use App\Scopes\CommonModel;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+
+/**
+ * @property string $slug
+ * @property string $name
+ */
+class SwimmingPermission extends CommonModel
+{
+    public const string SWIMMING_PERMISSION_ALLOWED = 'SWIMMING_PERMISSION_ALLOWED';
+    public const string SWIMMING_PERMISSION_LIMITED = 'SWIMMING_PERMISSION_LIMITED';
+    public const string SWIMMING_PERMISSION_DENIED = 'SWIMMING_PERMISSION_DENIED';
+
+
+
+    use HasFactory;
+
+    protected $fillable = [
+        'slug',
+        'name',
+    ];
+}
diff --git a/app/Enumerations/UserRole.php b/app/Enumerations/UserRole.php
new file mode 100644
index 0000000..7e54ca5
--- /dev/null
+++ b/app/Enumerations/UserRole.php
@@ -0,0 +1,17 @@
+<?php
+
+namespace App\Enumerations;
+
+use App\Scopes\CommonModel;
+
+class UserRole extends CommonModel {
+    public const USER_ROLE_ADMIN = 'ROLE_ADMINISTRATOR';
+    public const USER_ROLE_GROUP_LEADER = 'ROLE_GROUP_LEADER';
+    public const USER_ROLE_USER = 'ROLE_USER';
+
+
+    protected $fillable = [
+        'name',
+        'slug'
+    ];
+}
diff --git a/app/Http/Controllers/Controller.php b/app/Http/Controllers/Controller.php
deleted file mode 100644
index 8677cd5..0000000
--- a/app/Http/Controllers/Controller.php
+++ /dev/null
@@ -1,8 +0,0 @@
-<?php
-
-namespace App\Http\Controllers;
-
-abstract class Controller
-{
-    //
-}
diff --git a/app/Installer/DevelopmentDataSeeder.php b/app/Installer/DevelopmentDataSeeder.php
new file mode 100644
index 0000000..4762eaf
--- /dev/null
+++ b/app/Installer/DevelopmentDataSeeder.php
@@ -0,0 +1,43 @@
+<?php
+
+namespace App\Installer;
+
+use App\Enumerations\UserRole;
+use App\Models\Tenant;
+use App\Models\User;
+
+class DevelopmentDataSeeder {
+    public function execute() {
+        $this->installTenants();
+        $this->installUsers();
+    }
+
+
+
+    private function installTenants() {
+        Tenant::create([
+            'slug' => 'wilde-moehre',
+            'local_group_name' => 'Stamm Wilde Möhre',
+            'url' => 'wilde-moehre.mareike.local',
+            'account_iban' => 'DE12345678901234567890',
+            'email' => 'test@example1.com',
+            'city' => 'Halle (Saale)',
+            'postcode' => '06120',
+            'is_active_local_group' => true,
+            'has_active_instance' => true,
+        ]);
+    }
+
+    private function installUsers() {
+        User::create([
+            'firstname' => 'Development',
+            'lastname' => 'User',
+            'user_role' => UserRole::USER_ROLE_ADMIN,
+            'tenant' => 'lv',
+            'email' => 'th.guenther@saale-mail.de',
+            'password' => bcrypt('development'),
+            'local_group_id' => 1,
+            'username' => 'development',
+        ]);
+    }
+}
diff --git a/app/Installer/ProductionDataSeeder.php b/app/Installer/ProductionDataSeeder.php
new file mode 100644
index 0000000..dcebdd5
--- /dev/null
+++ b/app/Installer/ProductionDataSeeder.php
@@ -0,0 +1,71 @@
+<?php
+
+namespace App\Installer;
+
+use App\Enumerations\CostUnitType;
+use App\Enumerations\EatingHabit;
+use App\Enumerations\FirstAidPermission;
+use App\Enumerations\SwimmingPermission;
+use App\Enumerations\UserRole;
+use App\Models\Tenant;
+
+class ProductionDataSeeder {
+    public function execute() {
+        $this->installUserRoles();
+        $this->installCostUnitTypes();
+        $this->installSwimmingPermissions();
+        $this->installEatingHabits();
+        $this->installFirstAidPermissions();
+        $this->installTenants();
+    }
+
+    private function installUserRoles() {
+        UserRole::create(['name' => 'Administrator*in', 'slug' => UserRole::USER_ROLE_ADMIN]);
+        UserRole::create(['name' => 'Vorstandsmitglied', 'slug' => UserRole::USER_ROLE_GROUP_LEADER]);
+        UserRole::create(['name' => 'Benutzer*in', 'slug' => UserRole::USER_ROLE_USER]);
+    }
+
+    private function installSwimmingPermissions() {
+        SwimmingPermission::create(['name' => 'Mein Kind darf baden und kann schwimmen', 'slug' => SwimmingPermission::SWIMMING_PERMISSION_ALLOWED]);
+        SwimmingPermission::create(['name' => 'Mein Kind darf baden und kann NICHT schwimmen', 'slug' => SwimmingPermission::SWIMMING_PERMISSION_LIMITED]);
+        SwimmingPermission::create(['name' => 'Mein Kind darf nicht baden', 'slug' => SwimmingPermission::SWIMMING_PERMISSION_DENIED]);
+    }
+
+    private function installEatingHabits() {
+        EatingHabit::create(['name' => 'Vegan', 'slug' => EatingHabit::EATING_HABIT_VEGAN]);
+        EatingHabit::create(['name' => 'Vegetarisch', 'slug' => EatingHabit::EATING_HABIT_VEGETARIAN]);
+        EatingHabit::create(['name' => 'Omnivor', 'slug' => EatingHabit::EATING_HABIT_OMNIVOR]);
+
+    }
+    private function installFirstAidPermissions() {
+        FirstAidPermission::create([
+            'name' => 'Zugestimmt',
+            'description' => 'Ich STIMME der Anwendung von erweiteren Erste-Hilfe-Maßnahmen an meinem Kind explizit ZU.',
+            'slug' => FirstAidPermission::FIRST_AID_PERMISSION_ALLOWED]);
+
+        FirstAidPermission::create([
+            'name' => 'Verweigert',
+            'description' => 'Ich LEHNE die Anwendung von erweiteren Erste-Hilfe-Maßnahmen an meinem Kind explizit AB.',
+            'slug' => FirstAidPermission::FIRST_AID_PERMISSION_DENIED]);
+    }
+
+    private function installCostUnitTypes() {
+        CostUnitType::create(['slug' => CostUnitType::COST_UNIT_TYPE_EVENT, 'name' => 'Veranstaltung']);
+        CostUnitType::create(['slug' => CostUnitType::COST_UNIT_TYPE_RUNNING_JOB, 'name' => 'Laufende Tätigkeit']);
+
+    }
+
+    private function installTenants() {
+        Tenant::create([
+            'slug' => 'lv',
+            'local_group_name' => 'Landesunmittelbare Mitglieder',
+            'url' => 'mareike.local',
+            'account_iban' => 'DE12345678901234567890',
+            'email' => 'test@example.com',
+            'city' => 'Lommatzsch',
+            'postcode' => '01623',
+            'is_active_local_group' => true,
+            'has_active_instance' => true,
+        ]);
+    }
+}
diff --git a/app/Http/Middleware/HandleInertiaRequests.php b/app/Middleware/HandleInertiaRequests.php
similarity index 96%
rename from app/Http/Middleware/HandleInertiaRequests.php
rename to app/Middleware/HandleInertiaRequests.php
index c19ce18..e20fd21 100644
--- a/app/Http/Middleware/HandleInertiaRequests.php
+++ b/app/Middleware/HandleInertiaRequests.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace App\Http\Middleware;
+namespace App\Middleware;
 
 use Illuminate\Http\Request;
 use Inertia\Middleware;
diff --git a/app/Middleware/IdentifyTenant.php b/app/Middleware/IdentifyTenant.php
new file mode 100644
index 0000000..a3dbd53
--- /dev/null
+++ b/app/Middleware/IdentifyTenant.php
@@ -0,0 +1,24 @@
+<?php
+
+namespace App\Middleware;
+
+use App\Models\Tenant;
+use Closure;
+use Illuminate\Http\Request;
+use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
+
+class IdentifyTenant
+{
+    public function handle(Request $request, Closure $next)
+    {
+        $host = $request->getHost();
+        $tenant = Tenant::where(['url' => $host, 'has_active_instance' => true])->first();
+
+        if (! $tenant) {
+            throw new NotFoundHttpException('Tenant not found');
+        }
+
+        app()->instance('tenant', $tenant);
+        return $next($request);
+    }
+}
diff --git a/app/Models/Tenant.php b/app/Models/Tenant.php
new file mode 100644
index 0000000..35bed28
--- /dev/null
+++ b/app/Models/Tenant.php
@@ -0,0 +1,39 @@
+<?php
+
+namespace App\Models;
+
+use App\Scopes\CommonModel;
+
+/**
+ * @property string $slug
+ * @property string $local_group
+ * @property string $email
+ * @property string $url
+ * @property string $account_iban
+ * @property string $city
+ * @property string $postcode
+ * @property string $gdpr_text
+ * @property string $impress_text
+ * @property string $url_participation_rules
+ * @property boolean $events_allowed
+ * @property boolean $has_active_instance
+ */
+class Tenant extends CommonModel
+{
+    public const PRIMARY_TENANT_NAME = 'LV';
+
+    protected $fillable = [
+        'slug',
+        'local_group_name',
+        'email',
+        'url',
+        'account_iban',
+        'city',
+        'postcode',
+        'gdpr_text',
+        'impress_text',
+        'url_participation_rules',
+        'is_active_local_group',
+        'has_active_instance'
+    ];
+}
diff --git a/app/Models/User.php b/app/Models/User.php
index 749c7b7..04308d2 100644
--- a/app/Models/User.php
+++ b/app/Models/User.php
@@ -2,15 +2,12 @@
 
 namespace App\Models;
 
-// use Illuminate\Contracts\Auth\MustVerifyEmail;
-use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Foundation\Auth\User as Authenticatable;
 use Illuminate\Notifications\Notifiable;
 
 class User extends Authenticatable
 {
-    /** @use HasFactory<\Database\Factories\UserFactory> */
-    use HasFactory, Notifiable;
+    use Notifiable;
 
     /**
      * The attributes that are mass assignable.
@@ -18,8 +15,28 @@ class User extends Authenticatable
      * @var list<string>
      */
     protected $fillable = [
-        'name',
+        'tenant_id',
+        'user_role',
+        'username',
+        'firstname',
+        'nickname',
+        'lastname',
+        'local_group_id',
+        'membership_id',
+        'address_1',
+        'address_2',
+        'postcode',
+        'city',
         'email',
+        'phone',
+        'birthday',
+        'medications',
+        'allergies',
+        'intolerances',
+        'eating_habits',
+        'swimming_permission',
+        'first_aid_permission',
+        'bank_account_iban',
         'password',
     ];
 
@@ -29,7 +46,6 @@ class User extends Authenticatable
      * @var list<string>
      */
     protected $hidden = [
-        'password',
         'remember_token',
     ];
 
diff --git a/app/Providers/AppServiceProvider.php b/app/Providers/AppServiceProvider.php
index 452e6b6..7a8c57f 100644
--- a/app/Providers/AppServiceProvider.php
+++ b/app/Providers/AppServiceProvider.php
@@ -2,6 +2,7 @@
 
 namespace App\Providers;
 
+use Illuminate\Support\Facades\Auth;
 use Illuminate\Support\ServiceProvider;
 
 class AppServiceProvider extends ServiceProvider
@@ -19,6 +20,11 @@ class AppServiceProvider extends ServiceProvider
      */
     public function boot(): void
     {
-        //
+        Auth::provider('tenant-users', function ($app, array $config) {
+            return new TenantUserProvider(
+                $app['hash'],
+                $config['model']
+            );
+        });
     }
 }
diff --git a/app/Providers/InertiaProvider.php b/app/Providers/InertiaProvider.php
new file mode 100644
index 0000000..e4cf233
--- /dev/null
+++ b/app/Providers/InertiaProvider.php
@@ -0,0 +1,26 @@
+<?php
+
+namespace App\Providers;
+
+use Inertia\Inertia;
+use Inertia\Response;
+
+final class InertiaProvider
+{
+    private string $vueFile;
+    private array $props;
+
+    public function __construct(string $vueFile, array $props) {
+        $this->vueFile = $vueFile;
+        $this->props = $props;
+
+    }
+
+
+    public function render() : Response {
+        return Inertia::render(
+            str_replace('/', '/Views/', $this->vueFile),
+            $this->props
+        );
+    }
+}
diff --git a/app/Providers/TenantUserProvider.php b/app/Providers/TenantUserProvider.php
new file mode 100644
index 0000000..51702b9
--- /dev/null
+++ b/app/Providers/TenantUserProvider.php
@@ -0,0 +1,23 @@
+<?php
+
+namespace App\Providers;
+
+use Illuminate\Auth\EloquentUserProvider;
+
+class TenantUserProvider extends EloquentUserProvider
+{
+    public function retrieveByCredentials(array $credentials)
+    {
+        $query = $this->createModel()->newQuery();
+
+        foreach ($credentials as $key => $value) {
+            if (! str_contains($key, 'password')) {
+                $query->where($key, $value);
+            }
+        }
+
+        $query->where('tenant', app('tenant')->slug);
+
+        return $query->first();
+    }
+}
diff --git a/app/Scopes/CommonModel.php b/app/Scopes/CommonModel.php
new file mode 100644
index 0000000..b937fc2
--- /dev/null
+++ b/app/Scopes/CommonModel.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace App\Scopes;
+
+use Illuminate\Database\Eloquent\Model;
+
+abstract class CommonModel extends Model
+{
+
+}
diff --git a/app/Scopes/InstancedModel.php b/app/Scopes/InstancedModel.php
new file mode 100644
index 0000000..7ef172d
--- /dev/null
+++ b/app/Scopes/InstancedModel.php
@@ -0,0 +1,13 @@
+<?php
+
+namespace App\Scopes;
+
+use Illuminate\Database\Eloquent\Model;
+
+abstract class InstancedModel extends Model
+{
+    protected static function booted()
+    {
+        static::addGlobalScope(new SiteScope());
+    }
+}
diff --git a/app/Scopes/SiteScope.php b/app/Scopes/SiteScope.php
new file mode 100644
index 0000000..38bb945
--- /dev/null
+++ b/app/Scopes/SiteScope.php
@@ -0,0 +1,14 @@
+<?php
+namespace App\Scopes;
+
+use Illuminate\Database\Eloquent\Builder;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Scope;
+
+class SiteScope implements Scope
+{
+    public function apply(Builder $builder, Model $model): void
+    {
+        $builder->where($model->getTable() . '.tenant', app('tenant')->slug);
+    }
+}
diff --git a/bootstrap/app.php b/bootstrap/app.php
index c183276..2b5ff81 100644
--- a/bootstrap/app.php
+++ b/bootstrap/app.php
@@ -1,5 +1,6 @@
 <?php
 
+use App\Middleware\IdentifyTenant;
 use Illuminate\Foundation\Application;
 use Illuminate\Foundation\Configuration\Exceptions;
 use Illuminate\Foundation\Configuration\Middleware;
@@ -8,10 +9,11 @@ return Application::configure(basePath: dirname(__DIR__))
     ->withRouting(
         web: __DIR__.'/../routes/web.php',
         commands: __DIR__.'/../routes/console.php',
+        api: __DIR__.'/../routes/api.php',
         health: '/up',
     )
     ->withMiddleware(function (Middleware $middleware): void {
-        //
+        $middleware->append(IdentifyTenant::class);
     })
     ->withExceptions(function (Exceptions $exceptions): void {
         //
diff --git a/bootstrap/providers.php b/bootstrap/providers.php
index 38b258d..c93fc13 100644
--- a/bootstrap/providers.php
+++ b/bootstrap/providers.php
@@ -2,4 +2,5 @@
 
 return [
     App\Providers\AppServiceProvider::class,
+
 ];
diff --git a/composer.json b/composer.json
index 22311da..e7da8ea 100644
--- a/composer.json
+++ b/composer.json
@@ -6,7 +6,7 @@
     "keywords": ["laravel", "framework"],
     "license": "MIT",
     "require": {
-        "php": "^8.2",
+        "php": "^8.5",
         "inertiajs/inertia-laravel": "^2.0",
         "laravel/framework": "^12.0",
         "laravel/tinker": "^2.10.1"
diff --git a/composer.lock b/composer.lock
index 452325b..13f363a 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": "0e42fe1a7066e7a110e956ae26703d94",
+    "content-hash": "587caff9de06de75c1e22cceac366334",
     "packages": [
         {
             "name": "brick/math",
@@ -2194,16 +2194,16 @@
         },
         {
             "name": "nesbot/carbon",
-            "version": "3.11.0",
+            "version": "3.11.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/CarbonPHP/carbon.git",
-                "reference": "bdb375400dcd162624531666db4799b36b64e4a1"
+                "reference": "f438fcc98f92babee98381d399c65336f3a3827f"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/CarbonPHP/carbon/zipball/bdb375400dcd162624531666db4799b36b64e4a1",
-                "reference": "bdb375400dcd162624531666db4799b36b64e4a1",
+                "url": "https://api.github.com/repos/CarbonPHP/carbon/zipball/f438fcc98f92babee98381d399c65336f3a3827f",
+                "reference": "f438fcc98f92babee98381d399c65336f3a3827f",
                 "shasum": ""
             },
             "require": {
@@ -2227,7 +2227,7 @@
                 "phpstan/extension-installer": "^1.4.3",
                 "phpstan/phpstan": "^2.1.22",
                 "phpunit/phpunit": "^10.5.53",
-                "squizlabs/php_codesniffer": "^3.13.4"
+                "squizlabs/php_codesniffer": "^3.13.4 || ^4.0.0"
             },
             "bin": [
                 "bin/carbon"
@@ -2270,14 +2270,14 @@
                 }
             ],
             "description": "An API extension for DateTime that supports 281 different languages.",
-            "homepage": "https://carbon.nesbot.com",
+            "homepage": "https://carbonphp.github.io/carbon/",
             "keywords": [
                 "date",
                 "datetime",
                 "time"
             ],
             "support": {
-                "docs": "https://carbon.nesbot.com/docs",
+                "docs": "https://carbonphp.github.io/carbon/guide/getting-started/introduction.html",
                 "issues": "https://github.com/CarbonPHP/carbon/issues",
                 "source": "https://github.com/CarbonPHP/carbon"
             },
@@ -2295,7 +2295,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2025-12-02T21:04:28+00:00"
+            "time": "2026-01-29T09:26:29+00:00"
         },
         {
             "name": "nette/schema",
@@ -8436,7 +8436,7 @@
     "prefer-stable": true,
     "prefer-lowest": false,
     "platform": {
-        "php": "^8.2"
+        "php": "^8.5"
     },
     "platform-dev": {},
     "plugin-api-version": "2.9.0"
diff --git a/config/auth.php b/config/auth.php
index 7d1eb0d..e6e4ace 100644
--- a/config/auth.php
+++ b/config/auth.php
@@ -61,8 +61,8 @@ return [
 
     'providers' => [
         'users' => [
-            'driver' => 'eloquent',
-            'model' => env('AUTH_MODEL', App\Models\User::class),
+            'driver' => 'tenant-users',
+            'model' => App\Models\User::class,
         ],
 
         // 'users' => [
diff --git a/database/factories/UserFactory.php b/database/factories/UserFactory.php
deleted file mode 100644
index 584104c..0000000
--- a/database/factories/UserFactory.php
+++ /dev/null
@@ -1,44 +0,0 @@
-<?php
-
-namespace Database\Factories;
-
-use Illuminate\Database\Eloquent\Factories\Factory;
-use Illuminate\Support\Facades\Hash;
-use Illuminate\Support\Str;
-
-/**
- * @extends \Illuminate\Database\Eloquent\Factories\Factory<\App\Models\User>
- */
-class UserFactory extends Factory
-{
-    /**
-     * The current password being used by the factory.
-     */
-    protected static ?string $password;
-
-    /**
-     * Define the model's default state.
-     *
-     * @return array<string, mixed>
-     */
-    public function definition(): array
-    {
-        return [
-            'name' => fake()->name(),
-            'email' => fake()->unique()->safeEmail(),
-            'email_verified_at' => now(),
-            'password' => static::$password ??= Hash::make('password'),
-            'remember_token' => Str::random(10),
-        ];
-    }
-
-    /**
-     * Indicate that the model's email address should be unverified.
-     */
-    public function unverified(): static
-    {
-        return $this->state(fn (array $attributes) => [
-            'email_verified_at' => null,
-        ]);
-    }
-}
diff --git a/database/migrations/0001_01_01_000000_create_users_table.php b/database/migrations/0001_01_01_000000_create_users_table.php
deleted file mode 100644
index 05fb5d9..0000000
--- a/database/migrations/0001_01_01_000000_create_users_table.php
+++ /dev/null
@@ -1,49 +0,0 @@
-<?php
-
-use Illuminate\Database\Migrations\Migration;
-use Illuminate\Database\Schema\Blueprint;
-use Illuminate\Support\Facades\Schema;
-
-return new class extends Migration
-{
-    /**
-     * Run the migrations.
-     */
-    public function up(): void
-    {
-        Schema::create('users', function (Blueprint $table) {
-            $table->id();
-            $table->string('name');
-            $table->string('email')->unique();
-            $table->timestamp('email_verified_at')->nullable();
-            $table->string('password');
-            $table->rememberToken();
-            $table->timestamps();
-        });
-
-        Schema::create('password_reset_tokens', function (Blueprint $table) {
-            $table->string('email')->primary();
-            $table->string('token');
-            $table->timestamp('created_at')->nullable();
-        });
-
-        Schema::create('sessions', function (Blueprint $table) {
-            $table->string('id')->primary();
-            $table->foreignId('user_id')->nullable()->index();
-            $table->string('ip_address', 45)->nullable();
-            $table->text('user_agent')->nullable();
-            $table->longText('payload');
-            $table->integer('last_activity')->index();
-        });
-    }
-
-    /**
-     * Reverse the migrations.
-     */
-    public function down(): void
-    {
-        Schema::dropIfExists('users');
-        Schema::dropIfExists('password_reset_tokens');
-        Schema::dropIfExists('sessions');
-    }
-};
diff --git a/database/migrations/2026_01_30_140001_create_tenants.php b/database/migrations/2026_01_30_140001_create_tenants.php
new file mode 100644
index 0000000..ddd4f7e
--- /dev/null
+++ b/database/migrations/2026_01_30_140001_create_tenants.php
@@ -0,0 +1,32 @@
+<?php
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration {
+    public function up(): void
+    {
+        Schema::create('tenants', function (Blueprint $table) {
+            $table->id();
+            $table->string('slug')->unique();
+            $table->string('local_group_name');
+            $table->string('email');
+            $table->string('url');
+            $table->string('account_iban');
+            $table->string('city');
+            $table->string('postcode');
+            $table->string('gdpr_text')-> nullable();
+            $table->string('impress_text')->nullable();
+            $table->string('url_participation_rules')->nullable();
+            $table->boolean('has_active_instance')->default(true);
+            $table->boolean('is_active_local_group')->default(true);
+
+            $table->timestamps();
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists('tenants');
+    }
+};
diff --git a/database/migrations/2026_01_30_140002_create_users_table.php b/database/migrations/2026_01_30_140002_create_users_table.php
new file mode 100644
index 0000000..5833b76
--- /dev/null
+++ b/database/migrations/2026_01_30_140002_create_users_table.php
@@ -0,0 +1,106 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('user_roles', function (Blueprint $table) {
+            $table->string('slug')->unique()->primary();
+            $table->string('name');
+            $table->timestamps();
+        });
+
+        Schema::create('eating_habits', function (Blueprint $table) {
+            $table->string('slug')->unique()->primary();
+            $table->string('name');
+            $table->timestamps();
+        });
+
+        Schema::create('swimming_permissions', function (Blueprint $table) {
+            $table->string('slug')->unique()->primary();
+            $table->string('name');
+            $table->timestamps();
+        });
+
+        Schema::create('first_aid_permissions', function (Blueprint $table) {
+            $table->string('slug')->unique()->primary();
+            $table->string('name');
+            $table->string('description');
+            $table->timestamps();
+        });
+
+        Schema::create('users', function (Blueprint $table) {
+            $table->id();
+            $table->string('tenant');
+            $table->string('user_role');
+            $table->string('username')->unique();
+            $table->string('password')->nullable();
+            $table->string('firstname');
+            $table->string('nickname')->nullable();
+            $table->string('lastname');
+            $table->foreignId('local_group_id')->references('id')->on('tenants')->cascadeOnDelete()->cascadeOnUpdate();
+            $table->string('membership_id')->nullable();
+            $table->string('address_1')->nullable();
+            $table->string('address_2')->nullable();
+            $table->string('postcode')->nullable();
+            $table->string('city')->nullable();
+            $table->string('email')->nullable();
+            $table->string('phone')->nullable();
+            $table->date('birthday')->nullable();
+            $table->string('medications')->nullable();
+            $table->string('allergies')->nullable();
+            $table->string('intolerances')->nullable();
+            $table->string('eating_habits')->nullable();
+            $table->string('swimming_permission')->nullable();
+            $table->string('first_aid_permission')->nullable();
+            $table->string('bank_account_iban')->nullable();
+            $table->string('activation_token')->nullable();
+            $table->boolean('activated')->default(false);
+
+            $table->foreign('tenant')->references('slug')->on('tenants')->cascadeOnDelete()->cascadeOnUpdate();
+            $table->foreign('user_role')->references('slug')->on('user_roles')->cascadeOnDelete()->cascadeOnUpdate();
+            $table->foreign('swimming_permission')->references('slug')->on('swimming_permissions')->cascadeOnDelete()->cascadeOnUpdate();
+            $table->foreign('eating_habits')->references('slug')->on('eating_habits')->cascadeOnDelete()->cascadeOnUpdate();
+            $table->foreign('first_aid_permission')->references('slug')->on('first_aid_permissions')->cascadeOnDelete()->cascadeOnUpdate();
+
+             $table->rememberToken();
+            $table->timestamps();
+        });
+
+        Schema::create('password_reset_tokens', function (Blueprint $table) {
+            $table->string('email')->primary();
+            $table->string('token');
+            $table->timestamp('created_at')->nullable();
+        });
+
+        Schema::create('sessions', function (Blueprint $table) {
+            $table->string('id')->primary();
+            $table->foreignId('user_id')->nullable()->index();
+            $table->string('ip_address', 45)->nullable();
+            $table->text('user_agent')->nullable();
+            $table->longText('payload');
+            $table->integer('last_activity')->index();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('users');
+        Schema::dropIfExists('password_reset_tokens');
+        Schema::dropIfExists('sessions');
+        Schema::dropIfExists('user_roles');
+        Schema::dropIfExists('eating_habits');
+        Schema::dropIfExists('swimming_permissions');
+        Schema::dropIfExists('first_aid_permissions');
+    }
+};
diff --git a/database/migrations/2026_01_30_140010_create_cost_units.php b/database/migrations/2026_01_30_140010_create_cost_units.php
new file mode 100644
index 0000000..8856e89
--- /dev/null
+++ b/database/migrations/2026_01_30_140010_create_cost_units.php
@@ -0,0 +1,43 @@
+<?php
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration {
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('cost_unit_types', function (Blueprint $table) {
+            $table->string('slug')->primary();
+            $table->string('name');
+            $table->timestamps();
+        });
+
+
+
+        Schema::create('cost_units', function (Blueprint $table) {
+            $table->id();
+            $table->string('tenant');
+            $table->string('name');
+            $table->string('type');
+            $table->dateTime('billing_deadline');
+            $table->float('distance_allowance');
+            $table->boolean('mail_on_new')->default(true);
+            $table->boolean('allow_new')->default(true);
+            $table->boolean('archived')->default(false);
+            $table->string('treasurers');
+
+            $table->foreign('tenant')->references('slug')->on('tenants')->cascadeOnDelete()->cascadeOnUpdate();
+            $table->foreign('type')->references('slug')->on('cost_unit_types')->cascadeOnDelete()->cascadeOnUpdate();
+            $table->timestamps();
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists('cost_units');
+        Schema::dropIfExists('cost_unit_types');
+    }
+};
diff --git a/database/seeders/DatabaseSeeder.php b/database/seeders/DatabaseSeeder.php
index 6b901f8..a8a01af 100644
--- a/database/seeders/DatabaseSeeder.php
+++ b/database/seeders/DatabaseSeeder.php
@@ -2,7 +2,9 @@
 
 namespace Database\Seeders;
 
-use App\Models\User;
+use App\Installer\DevelopmentDataSeeder;
+use App\Installer\ProductionData;
+use App\Installer\ProductionDataSeeder;
 use Illuminate\Database\Console\Seeds\WithoutModelEvents;
 use Illuminate\Database\Seeder;
 
@@ -15,11 +17,12 @@ class DatabaseSeeder extends Seeder
      */
     public function run(): void
     {
-        // User::factory(10)->create();
+        $productionSeeeder = new ProductionDataSeeder();
+        $productionSeeeder->execute();
 
-        User::factory()->create([
-            'name' => 'Test User',
-            'email' => 'test@example.com',
-        ]);
+        if (str_ends_with(env('APP_URL'), 'mareike.local')) {
+            $deveopmentDataSeeder = new DevelopmentDataSeeder();
+            $deveopmentDataSeeder->execute();
+        }
     }
 }
diff --git a/docker-compose.yaml b/docker-compose.dev
similarity index 92%
rename from docker-compose.yaml
rename to docker-compose.dev
index 95a230a..6a7134d 100644
--- a/docker-compose.yaml
+++ b/docker-compose.dev
@@ -18,12 +18,12 @@ services:
 
     labels:
         - "traefik.enable=true"
-        - "traefik.http.routers.mareike.rule=Host(`mareike.local`)"
+        - "traefik.http.routers.mareike.rule=Host(`mareike.local`) || Host(`admin.mareike.local`) || Host(`wilde-moehre.mareike.local`)"
         - "traefik.http.routers.mareike.entrypoints=websecure"
         - "traefik.http.routers.mareike.tls=true"
         - "traefik.http.services.mareike.loadbalancer.server.port=80"
 
-        - "traefik.http.routers.mareike-http.rule=Host(`mareike.local`)"
+        - "traefik.http.routers.mareike-http.rule=Host(`mareike.local`) || Host(`admin.mareike.local`) || Host(`wilde-moehre.mareike.local`)"
         - "traefik.http.routers.mareike-http.entrypoints=web"
         - "traefik.http.routers.mareike-http.middlewares=redirect-to-https"
 
diff --git a/resources/js/app.js b/resources/js/app.js
index 104602f..05e5ddc 100644
--- a/resources/js/app.js
+++ b/resources/js/app.js
@@ -5,43 +5,32 @@ import { InertiaProgress } from '@inertiajs/progress'
 import Vue3Toastify, { toast } from 'vue3-toastify'
 import 'vue3-toastify/dist/index.css'
 
-// Optional: Lade-Balken für Inertia
 InertiaProgress.init()
 
-// Inertia App starten
 createInertiaApp({
-    // Alle Pages in app/Views/Pages/**/*.vue werden automatisch importiert
     resolve: name => {
-        // Vite scannt die Pages dynamisch
-        const pages = import.meta.glob('@views/**/*.vue')
+        const pages = import.meta.glob('@domains/**/*.vue')
 
-        // Suche nach der richtigen Page-Datei
         const key = Object.keys(pages).find(k =>
             k.endsWith(`/${name}.vue`) || k.endsWith(`/${name}/index.vue`)
         )
 
         if (!key) throw new Error(`Page not found: ${name}`)
 
-        // Unterstützt sowohl <script setup> als auch klassische Exports
         return pages[key]()
     },
 
-    // Setup der App
     setup({ el, App, props, plugin }) {
         const vueApp = createApp({ render: () => h(App, props) })
 
-        // Inertia Plugin
         vueApp.use(plugin)
-
-        // Toastify global verfügbar machen
         vueApp.use(Vue3Toastify, {
             autoClose: 3000,
             position: 'top-right',
             pauseOnHover: true,
         })
-        vueApp.config.globalProperties.$toast = toast
 
-        // Mounten auf das DOM
+        vueApp.config.globalProperties.$toast = toast
         vueApp.mount(el)
     },
 })
diff --git a/routes/api.php b/routes/api.php
new file mode 100644
index 0000000..1b1d16a
--- /dev/null
+++ b/routes/api.php
@@ -0,0 +1,15 @@
+<?php
+
+use Illuminate\Support\Facades\Route;
+use Inertia\Inertia;
+
+
+Route::get('/', ['TestController', 'index']);
+
+
+
+Route::get('/inertia', function () {
+    return Inertia::render('Pages/Home', [
+        'appName' => config('app.name'),
+    ]);
+});
diff --git a/vite.config.js b/vite.config.js
index 5f61319..7ae0d0b 100644
--- a/vite.config.js
+++ b/vite.config.js
@@ -15,6 +15,7 @@ export default defineConfig({
         alias: {
             '@': path.resolve(__dirname, 'resources/js'),
             '@views': path.resolve(__dirname, 'app/Views'),
+            '@domains': path.resolve(__dirname, 'app/Domains'),
         },
     },
 })