diff --git a/app/Console/Commands/CaldavSyncCommand.php b/app/Console/Commands/CaldavSyncCommand.php
new file mode 100644
index 0000000..2e8d6e1
--- /dev/null
+++ b/app/Console/Commands/CaldavSyncCommand.php
@@ -0,0 +1,32 @@
+<?php
+
+namespace App\Console\Commands;
+
+use Illuminate\Console\Command;
+use App\Services\CaldavService;
+use App\Models\Todo;
+use App\Models\TodoType;
+use Sabre\VObject\Component\VCalendar;
+use Illuminate\Support\Facades\Log;
+
+class CaldavSyncCommand extends Command
+{
+    protected $signature = 'caldav:sync {--calendar= : optional calendar path}';
+    protected $description = 'Sync CalDAV VTODOs into local todos table';
+
+    public function handle(CaldavService $service)
+    {
+        $this->info('Starting CalDAV sync...');
+
+        $todos = $service->getTodos();
+
+        $count = 0;
+        foreach ($todos as $todo) {
+            Todo::upsert($todo->attributesToArray(), 'id');
+            $count++;
+        }
+
+        $this->info("Synced " . count($todos) . " todos.");
+        return 0;
+    }
+}
diff --git a/app/Console/Commands/Kernel.php b/app/Console/Commands/Kernel.php
new file mode 100644
index 0000000..ac665f8
--- /dev/null
+++ b/app/Console/Commands/Kernel.php
@@ -0,0 +1,41 @@
+<?php
+
+namespace App\Console;
+
+use Illuminate\Console\Scheduling\Schedule;
+use Illuminate\Foundation\Console\Kernel as ConsoleKernel;
+
+class Kernel extends ConsoleKernel
+{
+    /**
+     * Register the Artisan commands for the application.
+     *
+     * @var array
+     */
+    protected $commands = [
+        \App\Console\Commands\CaldavSyncCommand::class,
+    ];
+
+    /**
+     * Define the application's command schedule.
+     */
+    protected function schedule(Schedule $schedule): void
+    {
+        // Beispiel: CalDAV Sync jede Stunde
+        $schedule->command('caldav:sync')->hourly();
+
+        // Alternativen:
+        // $schedule->command('caldav:sync')->daily();
+        // $schedule->command('caldav:sync --calendar=/calendars/me/default/')->dailyAt('02:00');
+    }
+
+    /**
+     * Register the commands for the application.
+     */
+    protected function commands(): void
+    {
+        $this->load(__DIR__ . '/Commands');
+
+        require base_path('routes/console.php');
+    }
+}
\ No newline at end of file
diff --git a/app/Http/Controllers/TodoController.php b/app/Http/Controllers/TodoController.php
new file mode 100644
index 0000000..f157de0
--- /dev/null
+++ b/app/Http/Controllers/TodoController.php
@@ -0,0 +1,82 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use App\Models\Todo;
+use Illuminate\Http\Request;
+use Illuminate\Support\Str;
+use App\Support\ApiDataTransformer;
+
+class TodoController extends Controller
+{
+    public function index()
+    {
+        $todos = Todo::with('type')->get();
+        return ApiDataTransformer::snakeToCamel($todos->toArray());
+    }
+
+    public function show(string $id)
+    {
+        return Todo::with('type')->findOrFail($id);
+    }
+
+    public function store(Request $request)
+    {
+        $data = $request->validate([
+            'id' => 'nullable|string',
+            'etag' => 'nullable|string',
+            'title' => 'required|string',
+            'description' => 'nullable|string',
+            'type_id' => 'nullable|exists:todo_types,id',
+            'url' => 'nullable|url',
+            'due_date' => 'nullable|date',
+            'recurring' => 'nullable|string',
+            'priority' => 'nullable|integer',
+            'status' => 'nullable|string',
+            'parent' => 'nullable|string',
+            'object' => 'nullable|string',
+        ]);
+
+        $data['id'] = $data['id'] ?? (string) Str::uuid();
+        $now = now();
+        $data['created_at'] = $data['created_at'] ?? $now;
+        $data['last_modified'] = $now;
+
+        $todo = Todo::create($data);
+
+        return response()->json($todo, 201);
+    }
+
+    public function update(Request $request, string $id)
+    {
+        $todo = Todo::findOrFail($id);
+
+        $data = $request->validate([
+            'etag' => 'nullable|string',
+            'title' => 'sometimes|required|string',
+            'description' => 'nullable|string',
+            'type_id' => 'nullable|exists:todo_types,id',
+            'url' => 'nullable|url',
+            'due_date' => 'nullable|date',
+            'recurring' => 'nullable|string',
+            'priority' => 'nullable|integer',
+            'status' => 'nullable|string',
+            'parent' => 'nullable|string',
+            'object' => 'nullable|string',
+        ]);
+
+        $data['last_modified'] = now();
+
+        $todo->update($data);
+
+        return response()->json($todo);
+    }
+
+    public function destroy(string $id)
+    {
+        $todo = Todo::findOrFail($id);
+        $todo->delete();
+
+        return response()->noContent();
+    }
+}
diff --git a/app/Models/Todo.php b/app/Models/Todo.php
new file mode 100644
index 0000000..1eea1f2
--- /dev/null
+++ b/app/Models/Todo.php
@@ -0,0 +1,56 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+class Todo extends Model
+{
+    use HasFactory;
+
+    protected $primaryKey = 'id';
+    public $incrementing = false;
+    protected $keyType = 'string';
+
+    // Wir verwalten created_at / last_modified manuell
+    public $timestamps = false;
+
+    protected $fillable = [
+        'id',
+        'etag',
+        'title',
+        'description',
+        'type_id',
+        'url',
+        'due_date',
+        'recurring',
+        'priority',
+        'status',
+        'created_at',
+        'last_modified',
+        'parent',
+        'object',
+    ];
+
+    protected $casts = [
+        'due_date' => 'datetime',
+        'created_at' => 'datetime',
+        'last_modified' => 'datetime',
+    ];
+
+    public function type()
+    {
+        return $this->belongsTo(TodoType::class, 'type_id');
+    }
+
+    public function parentTodo()
+    {
+        return $this->belongsTo(self::class, 'parent');
+    }
+
+    public function children()
+    {
+        return $this->hasMany(self::class, 'parent');
+    }
+}
\ No newline at end of file
diff --git a/app/Models/TodoType.php b/app/Models/TodoType.php
new file mode 100644
index 0000000..11faa32
--- /dev/null
+++ b/app/Models/TodoType.php
@@ -0,0 +1,20 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+class TodoType extends Model
+{
+    use HasFactory;
+
+    protected $fillable = ['name'];
+
+    public $timestamps = false;
+
+    public function todos()
+    {
+        return $this->hasMany(Todo::class, 'type_id');
+    }
+}
\ No newline at end of file
diff --git a/app/Services/CaldavService.php b/app/Services/CaldavService.php
new file mode 100644
index 0000000..7d97784
--- /dev/null
+++ b/app/Services/CaldavService.php
@@ -0,0 +1,174 @@
+<?php
+
+namespace App\Services;
+
+use App\Models\Todo;
+use Sabre\DAV\Client;
+use Sabre\DAV\Xml\Service;
+use Illuminate\Support\Facades\Log;
+use Sabre\VObject;
+
+
+class CalendarInfo
+{
+    public $id;
+    public $displayName;
+    public $url;
+    public $ctag;
+    public $syncToken;
+    public $color;
+}
+
+
+class CaldavService
+{
+    protected Client $client;
+    protected string $baseUrl;
+    protected string $userName;
+    protected CalendarInfo $calendar;
+
+    public function __construct()
+    {
+        $cfg = config('caldav', []);
+
+        $this->calendar = new CalendarInfo();
+        $this->baseUrl = rtrim($cfg['base_url'] ?? '', '/') . '/';
+        $this->userName = $cfg['username'] ?? '';
+        $this->calendar->displayName = $cfg['calendar_name'] ?? '';
+
+        if (
+            empty($this->baseUrl) ||
+            empty($this->userName) ||
+            empty($cfg['password'] ?? '') ||
+            empty($this->calendar->displayName)
+        ) {
+            Log::warning('CalDAV config incomplete', ['base' => $this->baseUrl, 'calendarName' => $this->calendar->displayName, 'userName' => $this->userName]);
+        }
+
+        $this->client = new Client([
+            'baseUri'   => $this->baseUrl,
+            'userName'  => $cfg['username'] ?? null,
+            'password'  => $cfg['password'] ?? null,
+            'authType' => \Sabre\DAV\Client::AUTH_BASIC,
+            'userAgent' => $cfg['user_agent'] ?? 'caldav-client',
+        ]);
+
+        $this->getCalendarInfo();
+    }
+
+    /**
+     * Requests all calendars of the user and gets the ID that belongs to the calendar name
+     */
+    public function getCalendarId()
+    {
+        $response = $this->client->propFind(
+            'calendars/' . $this->userName . '/',
+            [
+                '{DAV:}resourcetype',
+                '{DAV:}displayname',
+            ],
+            1
+        );
+
+        foreach ($response as $href => $node) {
+            if (array_key_exists('{DAV:}displayname', $node) && strcasecmp($node['{DAV:}displayname'], $this->calendar->displayName) == 0) {
+                $this->calendar->url = $href;
+
+                $parts = explode('/', trim($href, '/'));
+                return array_pop($parts);
+            }
+        }
+    }
+
+    /**
+     * Request information about the calendar (ctag, sync-token, color)
+     */
+    public function getCalendarInfo()
+    {
+        $this->calendar->id = $this->getCalendarId();
+
+        $response = $this->client->propFind(
+            'calendars/' . $this->userName . '/' . $this->calendar->id,
+            [
+                '{DAV:}displayname',
+                '{http://calendarserver.org/ns/}getctag',
+                '{DAV:}sync-token',
+                '{http://apple.com/ns/ical/}calendar-color',
+            ]
+        );
+
+        // TODO: store ctag to compare whether the calendar has changed
+        $this->calendar->ctag = $response['{http://calendarserver.org/ns/}getctag'];
+        $this->calendar->syncToken = $response['{DAV:}sync-token'];
+        $this->calendar->color = $response['{http://apple.com/ns/ical/}calendar-color'];
+
+        return $this->calendar;
+    }
+
+    public function getTodos()
+    {
+        $body = '<c:calendar-query xmlns:d="DAV:" xmlns:c="urn:ietf:params:xml:ns:caldav">'
+            . '    <d:prop>'
+            . '        <d:getetag />'
+            . '        <c:calendar-data />'
+            . '    </d:prop>'
+            . '    <c:filter>'
+            . '        <c:comp-filter name="VCALENDAR">'
+            . '            <c:comp-filter name="VTODO" />'
+            . '        </c:comp-filter>'
+            . '    </c:filter>'
+            . '</c:calendar-query>';
+
+        $headers = [
+            'Depth' => '1',
+            'Content-Type' => 'application/xml; charset=utf-8',
+            'Prefer' => 'return-minimal'
+        ];
+
+        $response = $this->client->request(
+            'REPORT',
+            'calendars/' . $this->userName . '/' . $this->calendar->id,
+            $body,
+            $headers
+        );
+
+
+        // Sabre\DAV\Xml\Service
+        $service = new Service();
+        // Sabre\DAV\Xml\Response\MultiStatus
+        $multiStatus = $service->parse($response['body']);
+        // Sabre\DAV\Xml\Element\Response
+        $responses = $multiStatus->getResponses();
+
+        $todos = [];
+        foreach ($responses as $key => $response) {
+            $href = $response->getHref();
+            $properties = $response->getResponseProperties();
+            $calendarData = $properties[200]['{urn:ietf:params:xml:ns:caldav}calendar-data'];
+            $etag = $properties[200]['{DAV:}getetag'];
+            $vcalendar = VObject\Reader::read($calendarData);
+
+            // Create new todo
+            $todo = new Todo();
+
+            // Map VTODO -> App\Model\Todo
+            $todo->id = isset($vcalendar->VTODO->UID) ? $vcalendar->VTODO->UID->getValue() : uniqid();
+            $todo->etag = $etag;
+            $todo->title = isset($vcalendar->VTODO->SUMMARY) ? $vcalendar->VTODO->SUMMARY->getValue() : 'Neues Todo';
+            if (isset($vcalendar->VTODO->DESCRIPTION)) $todo->description = $vcalendar->VTODO->DESCRIPTION->getValue();
+            $todo->type_id = 2;
+            $todo->url = $href;
+            if (isset($vcalendar->VTODO->DUE)) $todo->due_date = $vcalendar->VTODO->DUE->getDateTime();
+            if(isset($vcalendar->VTODO->RRULE)) $todo->recurring = $vcalendar->VTODO->RRULE->getValue();
+            if(isset($vcalendar->VTODO->PRIORITY)) $todo->priority = $vcalendar->VTODO->PRIORITY->getValue();
+            if(isset($vcalendar->VTODO->STATUS)) $todo->status = $vcalendar->VTODO->STATUS->getValue();
+            if(isset($vcalendar->VTODO->{'RELATED-TO'})) $todo->parent = $vcalendar->VTODO->{'RELATED-TO'}->getValue();
+            $todo->created_at = $vcalendar->VTODO->CREATED->getDateTime();
+            $todo->last_modified = $vcalendar->VTODO->{'LAST-MODIFIED'}->getDateTime();
+
+            $todos[] = $todo;
+        }
+
+        return $todos;
+    }
+}
diff --git a/composer.json b/composer.json
index 81f3b6a..8debe3c 100644
--- a/composer.json
+++ b/composer.json
@@ -18,6 +18,8 @@
         "laravel/sanctum": "^4.2",
         "laravel/tinker": "^2.10",
         "laravel/wayfinder": "^0.1.12",
+        "sabre/dav": "^4.7",
+        "sabre/vobject": "^4.5",
         "tuncaybahadir/quar": "^1.5"
     },
     "require-dev": {
diff --git a/composer.lock b/composer.lock
index 7a14566..b4c88a6 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": "6b269e9a8e5a88ee3770bca378339d31",
+    "content-hash": "fb096bd73a886e7565163c92e76eed53",
     "packages": [
         {
             "name": "bacon/bacon-qr-code",
@@ -4954,6 +4954,451 @@
             },
             "time": "2025-07-11T13:20:48+00:00"
         },
+        {
+            "name": "sabre/dav",
+            "version": "4.7.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/sabre-io/dav.git",
+                "reference": "074373bcd689a30bcf5aaa6bbb20a3395964ce7a"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/sabre-io/dav/zipball/074373bcd689a30bcf5aaa6bbb20a3395964ce7a",
+                "reference": "074373bcd689a30bcf5aaa6bbb20a3395964ce7a",
+                "shasum": ""
+            },
+            "require": {
+                "ext-ctype": "*",
+                "ext-date": "*",
+                "ext-dom": "*",
+                "ext-iconv": "*",
+                "ext-json": "*",
+                "ext-mbstring": "*",
+                "ext-pcre": "*",
+                "ext-simplexml": "*",
+                "ext-spl": "*",
+                "lib-libxml": ">=2.7.0",
+                "php": "^7.1.0 || ^8.0",
+                "psr/log": "^1.0 || ^2.0 || ^3.0",
+                "sabre/event": "^5.0",
+                "sabre/http": "^5.0.5",
+                "sabre/uri": "^2.0",
+                "sabre/vobject": "^4.2.1",
+                "sabre/xml": "^2.0.1"
+            },
+            "require-dev": {
+                "friendsofphp/php-cs-fixer": "^2.19",
+                "monolog/monolog": "^1.27 || ^2.0",
+                "phpstan/phpstan": "^0.12 || ^1.0",
+                "phpstan/phpstan-phpunit": "^1.0",
+                "phpunit/phpunit": "^7.5 || ^8.5 || ^9.6"
+            },
+            "suggest": {
+                "ext-curl": "*",
+                "ext-imap": "*",
+                "ext-pdo": "*"
+            },
+            "bin": [
+                "bin/sabredav",
+                "bin/naturalselection"
+            ],
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "Sabre\\": "lib/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Evert Pot",
+                    "email": "me@evertpot.com",
+                    "homepage": "http://evertpot.com/",
+                    "role": "Developer"
+                }
+            ],
+            "description": "WebDAV Framework for PHP",
+            "homepage": "http://sabre.io/",
+            "keywords": [
+                "CalDAV",
+                "CardDAV",
+                "WebDAV",
+                "framework",
+                "iCalendar"
+            ],
+            "support": {
+                "forum": "https://groups.google.com/group/sabredav-discuss",
+                "issues": "https://github.com/sabre-io/dav/issues",
+                "source": "https://github.com/fruux/sabre-dav"
+            },
+            "time": "2024-10-29T11:46:02+00:00"
+        },
+        {
+            "name": "sabre/event",
+            "version": "5.1.7",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/sabre-io/event.git",
+                "reference": "86d57e305c272898ba3c28e9bd3d65d5464587c2"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/sabre-io/event/zipball/86d57e305c272898ba3c28e9bd3d65d5464587c2",
+                "reference": "86d57e305c272898ba3c28e9bd3d65d5464587c2",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^7.1 || ^8.0"
+            },
+            "require-dev": {
+                "friendsofphp/php-cs-fixer": "~2.17.1||^3.63",
+                "phpstan/phpstan": "^0.12",
+                "phpunit/phpunit": "^7.5 || ^8.5 || ^9.6"
+            },
+            "type": "library",
+            "autoload": {
+                "files": [
+                    "lib/coroutine.php",
+                    "lib/Loop/functions.php",
+                    "lib/Promise/functions.php"
+                ],
+                "psr-4": {
+                    "Sabre\\Event\\": "lib/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Evert Pot",
+                    "email": "me@evertpot.com",
+                    "homepage": "http://evertpot.com/",
+                    "role": "Developer"
+                }
+            ],
+            "description": "sabre/event is a library for lightweight event-based programming",
+            "homepage": "http://sabre.io/event/",
+            "keywords": [
+                "EventEmitter",
+                "async",
+                "coroutine",
+                "eventloop",
+                "events",
+                "hooks",
+                "plugin",
+                "promise",
+                "reactor",
+                "signal"
+            ],
+            "support": {
+                "forum": "https://groups.google.com/group/sabredav-discuss",
+                "issues": "https://github.com/sabre-io/event/issues",
+                "source": "https://github.com/fruux/sabre-event"
+            },
+            "time": "2024-08-27T11:23:05+00:00"
+        },
+        {
+            "name": "sabre/http",
+            "version": "5.1.13",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/sabre-io/http.git",
+                "reference": "7c2a14097d1a0de2347dcbdc91a02f38e338f4db"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/sabre-io/http/zipball/7c2a14097d1a0de2347dcbdc91a02f38e338f4db",
+                "reference": "7c2a14097d1a0de2347dcbdc91a02f38e338f4db",
+                "shasum": ""
+            },
+            "require": {
+                "ext-ctype": "*",
+                "ext-curl": "*",
+                "ext-mbstring": "*",
+                "php": "^7.1 || ^8.0",
+                "sabre/event": ">=4.0 <6.0",
+                "sabre/uri": "^2.0"
+            },
+            "require-dev": {
+                "friendsofphp/php-cs-fixer": "~2.17.1||3.63.2",
+                "phpstan/phpstan": "^0.12",
+                "phpunit/phpunit": "^7.5 || ^8.5 || ^9.6"
+            },
+            "suggest": {
+                "ext-curl": " to make http requests with the Client class"
+            },
+            "type": "library",
+            "autoload": {
+                "files": [
+                    "lib/functions.php"
+                ],
+                "psr-4": {
+                    "Sabre\\HTTP\\": "lib/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Evert Pot",
+                    "email": "me@evertpot.com",
+                    "homepage": "http://evertpot.com/",
+                    "role": "Developer"
+                }
+            ],
+            "description": "The sabre/http library provides utilities for dealing with http requests and responses. ",
+            "homepage": "https://github.com/fruux/sabre-http",
+            "keywords": [
+                "http"
+            ],
+            "support": {
+                "forum": "https://groups.google.com/group/sabredav-discuss",
+                "issues": "https://github.com/sabre-io/http/issues",
+                "source": "https://github.com/fruux/sabre-http"
+            },
+            "time": "2025-09-09T10:21:47+00:00"
+        },
+        {
+            "name": "sabre/uri",
+            "version": "2.3.4",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/sabre-io/uri.git",
+                "reference": "b76524c22de90d80ca73143680a8e77b1266c291"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/sabre-io/uri/zipball/b76524c22de90d80ca73143680a8e77b1266c291",
+                "reference": "b76524c22de90d80ca73143680a8e77b1266c291",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^7.4 || ^8.0"
+            },
+            "require-dev": {
+                "friendsofphp/php-cs-fixer": "^3.63",
+                "phpstan/extension-installer": "^1.4",
+                "phpstan/phpstan": "^1.12",
+                "phpstan/phpstan-phpunit": "^1.4",
+                "phpstan/phpstan-strict-rules": "^1.6",
+                "phpunit/phpunit": "^9.6"
+            },
+            "type": "library",
+            "autoload": {
+                "files": [
+                    "lib/functions.php"
+                ],
+                "psr-4": {
+                    "Sabre\\Uri\\": "lib/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Evert Pot",
+                    "email": "me@evertpot.com",
+                    "homepage": "http://evertpot.com/",
+                    "role": "Developer"
+                }
+            ],
+            "description": "Functions for making sense out of URIs.",
+            "homepage": "http://sabre.io/uri/",
+            "keywords": [
+                "rfc3986",
+                "uri",
+                "url"
+            ],
+            "support": {
+                "forum": "https://groups.google.com/group/sabredav-discuss",
+                "issues": "https://github.com/sabre-io/uri/issues",
+                "source": "https://github.com/fruux/sabre-uri"
+            },
+            "time": "2024-08-27T12:18:16+00:00"
+        },
+        {
+            "name": "sabre/vobject",
+            "version": "4.5.7",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/sabre-io/vobject.git",
+                "reference": "ff22611a53782e90c97be0d0bc4a5f98a5c0a12c"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/sabre-io/vobject/zipball/ff22611a53782e90c97be0d0bc4a5f98a5c0a12c",
+                "reference": "ff22611a53782e90c97be0d0bc4a5f98a5c0a12c",
+                "shasum": ""
+            },
+            "require": {
+                "ext-mbstring": "*",
+                "php": "^7.1 || ^8.0",
+                "sabre/xml": "^2.1 || ^3.0 || ^4.0"
+            },
+            "require-dev": {
+                "friendsofphp/php-cs-fixer": "~2.17.1",
+                "phpstan/phpstan": "^0.12 || ^1.12 || ^2.0",
+                "phpunit/php-invoker": "^2.0 || ^3.1",
+                "phpunit/phpunit": "^7.5 || ^8.5 || ^9.6"
+            },
+            "suggest": {
+                "hoa/bench": "If you would like to run the benchmark scripts"
+            },
+            "bin": [
+                "bin/vobject",
+                "bin/generate_vcards"
+            ],
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "4.0.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Sabre\\VObject\\": "lib/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Evert Pot",
+                    "email": "me@evertpot.com",
+                    "homepage": "http://evertpot.com/",
+                    "role": "Developer"
+                },
+                {
+                    "name": "Dominik Tobschall",
+                    "email": "dominik@fruux.com",
+                    "homepage": "http://tobschall.de/",
+                    "role": "Developer"
+                },
+                {
+                    "name": "Ivan Enderlin",
+                    "email": "ivan.enderlin@hoa-project.net",
+                    "homepage": "http://mnt.io/",
+                    "role": "Developer"
+                }
+            ],
+            "description": "The VObject library for PHP allows you to easily parse and manipulate iCalendar and vCard objects",
+            "homepage": "http://sabre.io/vobject/",
+            "keywords": [
+                "availability",
+                "freebusy",
+                "iCalendar",
+                "ical",
+                "ics",
+                "jCal",
+                "jCard",
+                "recurrence",
+                "rfc2425",
+                "rfc2426",
+                "rfc2739",
+                "rfc4770",
+                "rfc5545",
+                "rfc5546",
+                "rfc6321",
+                "rfc6350",
+                "rfc6351",
+                "rfc6474",
+                "rfc6638",
+                "rfc6715",
+                "rfc6868",
+                "vCalendar",
+                "vCard",
+                "vcf",
+                "xCal",
+                "xCard"
+            ],
+            "support": {
+                "forum": "https://groups.google.com/group/sabredav-discuss",
+                "issues": "https://github.com/sabre-io/vobject/issues",
+                "source": "https://github.com/fruux/sabre-vobject"
+            },
+            "time": "2025-04-17T09:22:48+00:00"
+        },
+        {
+            "name": "sabre/xml",
+            "version": "2.2.11",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/sabre-io/xml.git",
+                "reference": "01a7927842abf3e10df3d9c2d9b0cc9d813a3fcc"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/sabre-io/xml/zipball/01a7927842abf3e10df3d9c2d9b0cc9d813a3fcc",
+                "reference": "01a7927842abf3e10df3d9c2d9b0cc9d813a3fcc",
+                "shasum": ""
+            },
+            "require": {
+                "ext-dom": "*",
+                "ext-xmlreader": "*",
+                "ext-xmlwriter": "*",
+                "lib-libxml": ">=2.6.20",
+                "php": "^7.1 || ^8.0",
+                "sabre/uri": ">=1.0,<3.0.0"
+            },
+            "require-dev": {
+                "friendsofphp/php-cs-fixer": "~2.17.1||3.63.2",
+                "phpstan/phpstan": "^0.12",
+                "phpunit/phpunit": "^7.5 || ^8.5 || ^9.6"
+            },
+            "type": "library",
+            "autoload": {
+                "files": [
+                    "lib/Deserializer/functions.php",
+                    "lib/Serializer/functions.php"
+                ],
+                "psr-4": {
+                    "Sabre\\Xml\\": "lib/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Evert Pot",
+                    "email": "me@evertpot.com",
+                    "homepage": "http://evertpot.com/",
+                    "role": "Developer"
+                },
+                {
+                    "name": "Markus Staab",
+                    "email": "markus.staab@redaxo.de",
+                    "role": "Developer"
+                }
+            ],
+            "description": "sabre/xml is an XML library that you may not hate.",
+            "homepage": "https://sabre.io/xml/",
+            "keywords": [
+                "XMLReader",
+                "XMLWriter",
+                "dom",
+                "xml"
+            ],
+            "support": {
+                "forum": "https://groups.google.com/group/sabredav-discuss",
+                "issues": "https://github.com/sabre-io/xml/issues",
+                "source": "https://github.com/fruux/sabre-xml"
+            },
+            "time": "2024-09-06T07:37:46+00:00"
+        },
         {
             "name": "setasign/fpdf",
             "version": "1.8.6",
diff --git a/config/caldav.php b/config/caldav.php
new file mode 100644
index 0000000..c36c74b
--- /dev/null
+++ b/config/caldav.php
@@ -0,0 +1,10 @@
+<?php
+return [
+    'base_url' => env('CALDAV_BASE_URL', ''),
+    'username' => env('CALDAV_USERNAME', ''),
+    'password' => env('CALDAV_PASSWORD', ''),
+    'calendar_path' => env('CALDAV_CALENDAR_PATH', '/'),
+    'calendar_name' => env('CALDAV_CALENDAR_NAME', '/'),
+    'calendar_id' => env('CALDAV_CALENDAR_ID', '/'),
+    'user_agent' => env('CALDAV_USER_AGENT', 'caramel-crm-caldav/1.0'),
+];
diff --git a/database/factories/TodoFactory.php b/database/factories/TodoFactory.php
new file mode 100644
index 0000000..a545ff5
--- /dev/null
+++ b/database/factories/TodoFactory.php
@@ -0,0 +1,33 @@
+<?php
+
+namespace Database\Factories;
+
+use App\Models\Todo;
+use Illuminate\Database\Eloquent\Factories\Factory;
+use Illuminate\Support\Str;
+
+class TodoFactory extends Factory
+{
+    protected $model = Todo::class;
+
+    public function definition(): array
+    {
+        $now = $this->faker->dateTimeBetween('-1 month', 'now');
+        return [
+            'id' => (string) Str::uuid(),
+            'etag' => null,
+            'title' => $this->faker->sentence(4),
+            'description' => $this->faker->optional()->paragraph(),
+            'type_id' => null,
+            'url' => $this->faker->optional()->url(),
+            'due_date' => $this->faker->optional()->dateTimeBetween('now', '+2 months'),
+            'recurring' => $this->faker->optional()->regexify('RRULE:FREQ=DAILY;COUNT=\d{1,2}'),
+            'priority' => $this->faker->optional()->numberBetween(1, 9),
+            'status' => $this->faker->randomElement(['NEEDS-ACTION','IN-PROCESS','COMPLETED', null]),
+            'created_at' => $now,
+            'last_modified' => $this->faker->dateTimeBetween($now, 'now'),
+            'parent' => null,
+            'object' => null,
+        ];
+    }
+}
\ No newline at end of file
diff --git a/database/migrations/2025_11_28_000000_create_todo_table.php b/database/migrations/2025_11_28_000000_create_todo_table.php
new file mode 100644
index 0000000..b51ff72
--- /dev/null
+++ b/database/migrations/2025_11_28_000000_create_todo_table.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('todos', function (Blueprint $table) {
+            $table->string('id')->primary(); // ical UID
+            $table->string('etag')->nullable(); // ical etag
+            $table->string('title');
+            $table->text('description')->nullable();
+            $table->foreignId('type_id')->nullable()->constrained('todo_types')->nullOnDelete();
+            $table->string('url')->nullable();
+            $table->timestamp('due_date')->nullable();
+            $table->text('recurring')->nullable(); // RRULE
+            $table->tinyInteger('priority')->nullable();
+            $table->string('status')->nullable(); // e.g. IN-PROCESS, NEEDS-ACTION
+            $table->timestamp('created_at')->nullable(); // iCal CREATED
+            $table->timestamp('last_modified')->nullable(); // iCal LAST-MODIFIED
+            $table->string('parent')->nullable()->index(); // RELATED-TO (parent UID)
+            $table->string('object')->nullable(); // RELATED-TO (object reference)
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists('todos');
+    }
+};
\ No newline at end of file
diff --git a/database/migrations/2025_11_28_000000_create_todo_types_table.php b/database/migrations/2025_11_28_000000_create_todo_types_table.php
new file mode 100644
index 0000000..32aef78
--- /dev/null
+++ b/database/migrations/2025_11_28_000000_create_todo_types_table.php
@@ -0,0 +1,20 @@
+<?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('todo_types', function (Blueprint $table) {
+            $table->id();
+            $table->string('name')->unique();
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists('todo_types');
+    }
+};
\ No newline at end of file
diff --git a/database/seeders/DatabaseSeeder.php b/database/seeders/DatabaseSeeder.php
index e3d86cb..2a191f4 100644
--- a/database/seeders/DatabaseSeeder.php
+++ b/database/seeders/DatabaseSeeder.php
@@ -19,7 +19,8 @@ public function run(): void
     {
         $this->call([
             PaymentTermsSeeder::class,
-            SettingsTableSeeder::class
+            SettingsTableSeeder::class,
+            TodoTypeSeeder::class,
         ]);
 
         $user = User::factory()->create([
diff --git a/database/seeders/TodoTypeSeeder.php b/database/seeders/TodoTypeSeeder.php
new file mode 100644
index 0000000..5d1445e
--- /dev/null
+++ b/database/seeders/TodoTypeSeeder.php
@@ -0,0 +1,18 @@
+<?php
+
+namespace Database\Seeders;
+
+use Illuminate\Database\Seeder;
+use App\Models\TodoType;
+
+class TodoTypeSeeder extends Seeder
+{
+    public function run(): void
+    {
+        $types = ['phoneCall', 'todo', 'email', 'meeting'];
+
+        foreach ($types as $name) {
+            TodoType::firstOrCreate(['name' => $name]);
+        }
+    }
+}
diff --git a/resources/js/pages/Dashboard.vue b/resources/js/pages/Dashboard.vue
index 80d2df2..203e603 100644
--- a/resources/js/pages/Dashboard.vue
+++ b/resources/js/pages/Dashboard.vue
@@ -2,7 +2,7 @@
 import { onMounted, ref } from "vue"
 
 import AppLayout from '@/layouts/AppLayout.vue';
-import { Trophy, ArrowRight, UserCheck2 } from 'lucide-vue-next';
+import { Trophy, ArrowRight, UserCheck2, Repeat, ClipboardCheck } from 'lucide-vue-next';
 import { Alert, AlertDescription, AlertTitle } from "@/components/ui/alert"
 import { Card, CardContent, CardDescription, CardFooter, CardHeader, CardTitle, } from '@/components/ui/card'
 import Button from '@/components/ui/crm-button/Button.vue';
@@ -13,18 +13,7 @@ import { Tooltip, TooltipContent, TooltipProvider, TooltipTrigger, } from '@/com
 import { Link, usePage } from '@inertiajs/vue3';
 import axios, { AxiosError } from "axios";
 import { toast } from "vue-sonner";
-
-// defineProps<{
-//     yearlyStatistics: {
-//         year: number,
-//         totalRevenue: number,
-//         paid: number,
-//         draft: number,
-//         issued: number,
-//         due: number,
-//         reminded: number,
-//     },
-// }>()
+import { Todo } from "@/types";
 
 const salesStatistics = ref({
     year: new Date().getFullYear(),
@@ -46,6 +35,13 @@ if (token) {
 
 onMounted(async () => {
     // Load sales statistics
+    try {
+        let response = await axios.get('/api/todos')
+        todos.value = response.data
+    } catch (error) {
+        toast.error('Fehler beim Laden der Daten', { description: (error as AxiosError).message })
+    }
+
     try {
         let response = await axios.get('/api/invoices/salesStatistics')
         salesStatistics.value = response.data
@@ -55,11 +51,7 @@ onMounted(async () => {
 })
 
 
-const todos = ref([
-    { text: 'Lorem ipsum', dueDate: '2025-11-25', done: false, type: 'phoneCall' },
-    { text: 'Lorem ipsum', dueDate: '2025-11-25', done: false, type: 'mail' },
-    { text: 'Lorem ipsum', dueDate: '2025-11-25', done: false, type: 'task' }
-])
+const todos = ref<Todo[]>([])
 
 </script>
 
@@ -68,6 +60,76 @@ const todos = ref([
     <AppLayout title="Dashboard">
         <div class="columns-1 lg:columns-2 xl:columns-3 gap-8">
 
+
+            <!-- Nachrichten -->
+            <div class="break-inside-avoid mb-8 flex flex-col gap-3">
+                <Alert class="bg-muted">
+                    <Trophy class="h-4 w-4 stroke-amber-600" />
+                    <AlertTitle>Du hast zwei neue Erfolge</AlertTitle>
+                    <AlertDescription class="text-sky-600">
+                        Weiter so
+                    </AlertDescription>
+                </Alert>
+
+                <Alert class="bg-muted">
+                    <UserCheck2 class="h-4 w-4 stroke-lime-600" />
+                    <AlertTitle>Du hast länger keine Bestandskunden mehr kontaktiert</AlertTitle>
+                    <AlertDescription class="text-sky-600">
+                        <a href="">Hier sind ein paar Vorschläge für Dich
+                            <ArrowRight class="inline h-4 w-4" />
+                        </a>
+                    </AlertDescription>
+                </Alert>
+            </div>
+
+
+            <!-- TODO: make widget component -->
+            <!-- Aufgaben -->
+            <Card class="break-inside-avoid mb-8">
+                <CardHeader>
+                    <CardTitle>Aufgaben</CardTitle>
+                    <CardDescription>Card Description</CardDescription>
+                </CardHeader>
+                <CardContent>
+                    <!-- <h3 class="mb-4 font-bold text-md">Verspätet</h3> -->
+
+                    <!-- TODO: make TodoList component -->
+                    <ul class="flex flex-col">
+                        <li v-for="todo in todos"
+                            class="grid grid-cols-[calc(var(--spacing)_*_6)_auto] gap-y-0 gap-x-2 items-start border-b-1 last:border-0 border-foreground/20 py-2.5 pl-1 pr-2">
+                            <!-- TODO: make Todo component -->
+                            <div
+                                class="mt-1 row-span-2 w-5 aspect-square rounded-full border-muted-foreground has-[input:checked]:border-primary-foreground border-1 flex items-center justify-center">
+                                <div
+                                    class="w-3.5 relative aspect-square rounded-full bg-transparent has-[input:checked]:bg-primary-foreground">
+                                    <input type="checkbox" class="absolute -inset-2 opacity-0"
+                                        :checked="todo.status?.toLowerCase() == 'completed'">
+                                </div>
+                            </div>
+
+                            <div class="flex items-center gap-2">
+                                <span class="my-0 px-0 text-base! h-6 border-0 outline-0 shadow-none"
+                                    :class="{ 'line-through text-muted-foreground': todo.status?.toLowerCase() == 'completed' }">{{
+                                        todo.title
+                                    }}</span>
+                                <div class="grow"></div>
+                                <div class="text-muted-foreground">
+                                    <PhoneCall v-if="todo.type?.name === 'phoneCall'" stroke-width="1.5" :size="18" />
+                                    <ClipboardCheck v-else-if="todo.type?.name === 'todo'" stroke-width="1.5" :size="18" />
+                                    <Mail v-else-if="todo.type?.name === 'mail'" stroke-width="1.5" :size="18" />
+                                </div>
+                            </div>
+
+                            <div class="text-sm text-muted-foreground flex gap-3 items-center">
+                                <span v-if="todo.dueDate">{{ toLocalDate(todo.dueDate)}}</span>
+                                <Repeat v-if="todo.recurring" stroke-width="2" :size="14" />
+                            </div>
+                        </li>
+                    </ul>
+
+                </CardContent>
+            </Card>
+
             <!-- Rechnungen -->
             <Card class="break-inside-avoid mb-12">
                 <CardHeader>
@@ -83,74 +145,11 @@ const todos = ref([
             </Card>
 
 
-            <!-- Aufgaben -->
-            <Card class="break-inside-avoid mb-8">
-                <CardHeader>
-                    <CardTitle>Aufgaben</CardTitle>
-                    <CardDescription>Card Description</CardDescription>
-                </CardHeader>
-                <CardContent>
-                    <h3 class="mb-4 font-bold text-md">Verspätet</h3>
-                    <ul class="flex flex-col">
-                        <li v-for="todo in todos"
-                            class="grid grid-cols-[calc(var(--spacing)_*_6)_auto] gap-y-0 gap-x-2 items-start border-b-1 last:border-0 border-foreground/20 py-2.5 pl-1 pr-2">
-                            <div
-                                class="mt-1 row-span-2 w-5 aspect-square rounded-full border-muted-foreground border-1 flex items-center justify-center">
-                                <div
-                                    class="w-3.5 relative aspect-square rounded-full bg-transparent has-[input:checked]:bg-muted-foreground">
-                                    <input type="checkbox" class="absolute -inset-2 opacity-0">
-                                </div>
-                            </div>
-
-                            <div class="flex items-center gap-2">
-                                <span class="my-0 px-0 text-base! h-6 border-0 outline-0 shadow-none">{{ todo.text
-                                }}</span>
-                                <PhoneCall v-if="todo.type === 'phoneCall'" stroke-width="1.5" :size="16"
-                                    class="text-muted-foreground" />
-                                <Check v-else-if="todo.type === 'task'" stroke-width="1.5" :size="16"
-                                    class="text-muted-foreground" />
-                                <Mail v-else-if="todo.type === 'mail'" stroke-width="1.5" :size="16"
-                                    class="text-muted-foreground" />
-                            </div>
-
-                            <div class="text-sm text-muted-foreground">{{ toLocalDate(todo.dueDate) }}</div>
-                        </li>
-                    </ul>
-                    <h3 class="mb-4 font-bold text-md">Heute</h3>
-                    <ul class="flex flex-col">
-                        <li v-for="todo in todos"
-                            class="grid grid-cols-[calc(var(--spacing)_*_6)_auto] gap-y-0 gap-x-2 items-start border-b-1 last:border-0 border-foreground/20 py-2.5 pl-1 pr-2">
-                            <div
-                                class="mt-1 row-span-2 w-5 aspect-square rounded-full border-muted-foreground border-1 flex items-center justify-center">
-                                <div
-                                    class="w-3.5 relative aspect-square rounded-full bg-transparent has-[input:checked]:bg-muted-foreground">
-                                    <input type="checkbox" class="absolute -inset-2 opacity-0">
-                                </div>
-                            </div>
-
-                            <div class="flex items-center gap-2">
-                                <span class="my-0 px-0 text-base! h-6 border-0 outline-0 shadow-none">{{ todo.text
-                                }}</span>
-                                <PhoneCall v-if="todo.type === 'phoneCall'" stroke-width="1.5" :size="16"
-                                    class="text-muted-foreground" />
-                                <Check v-else-if="todo.type === 'task'" stroke-width="1.5" :size="16"
-                                    class="text-muted-foreground" />
-                                <Mail v-else-if="todo.type === 'mail'" stroke-width="1.5" :size="16"
-                                    class="text-muted-foreground" />
-                            </div>
-
-                            <div class="text-sm text-muted-foreground">{{ toLocalDate(todo.dueDate) }}</div>
-                        </li>
-                    </ul>
-                </CardContent>
-            </Card>
-
-
             <!-- Umsatz -->
             <Card class="break-inside-avoid mb-8 relative overflow-clip">
                 <div class="bg-image absolute -inset-6 opacity-30 blur-[2px]"
                     style="background-image: url('/storage/images/patterns/19742.jpg'); background-size: 150%;" </div>
-                    <CardHeader>
+                    <CardHeader class="z-1">
                         <CardTitle>Umsatz {{ salesStatistics?.year || '' }}</CardTitle>
                         <CardDescription>Card Description</CardDescription>
                     </CardHeader>
@@ -227,35 +226,6 @@ const todos = ref([
                     </CardContent>
             </Card>
 
-            <!-- Nachrichten -->
-            <Card class="break-inside-avoid mb-8">
-                <CardHeader>
-                    <CardTitle>Neuer Erfolg</CardTitle>
-                    <CardDescription>Card Description</CardDescription>
-                </CardHeader>
-                <CardContent class="flex flex-col gap-3">
-
-                    <Alert class="bg-muted">
-                        <Trophy class="h-4 w-4 stroke-amber-600" />
-                        <AlertTitle>Du hast zwei neue Erfolge</AlertTitle>
-                        <AlertDescription class="text-sky-600">
-                            Weiter so
-                        </AlertDescription>
-                    </Alert>
-
-                    <Alert class="bg-muted">
-                        <UserCheck2 class="h-4 w-4 stroke-lime-600"/>
-                        <AlertTitle>Du hast länger keine Bestandskunden mehr kontaktiert</AlertTitle>
-                        <AlertDescription class="text-sky-600">
-                            <a href="">Hier sind ein paar Vorschläge für Dich
-                                <ArrowRight class="inline h-4 w-4" />
-                            </a>
-                        </AlertDescription>
-                    </Alert>
-
-                </CardContent>
-            </Card>
-
         </div>
 
 
diff --git a/resources/js/types/index.d.ts b/resources/js/types/index.d.ts
index ba8c554..ec20bb4 100644
--- a/resources/js/types/index.d.ts
+++ b/resources/js/types/index.d.ts
@@ -165,6 +165,60 @@ export function newCustomer(): Customer {
     }
 }
 
+export interface TodoType {
+    id: number;
+    name: string;
+}
+
+export function newTodoType(): TodoType {
+    return {
+        id: 0,
+        name: ''
+    }
+}
+
+export interface Todo {
+    id: string;
+    etag: string | null;
+    title: string;
+    description: string | null;
+    typeId: number | null;
+    type?: TodoType | null;
+    url: string | null;
+    dueDate: Date | null;
+    recurring: boolean;
+    priority: number;
+    status: string;
+    createdAt: Date;
+    lastModified: Date;
+    parent: string | null;
+    parentTodo?: Todo | null;
+    children?: Todo[];
+    object: string | null;
+}
+
+export function newTodo(): Todo {
+    return {
+        id: '',
+        etag: null,
+        title: '',
+        description: null,
+        typeId: null,
+        type: null,
+        url: null,
+        dueDate: null,
+        recurring: false,
+        priority: 1,
+        status: 'pending',
+        createdAt: new Date(),
+        lastModified: new Date(),
+        parent: null,
+        parentTodo: null,
+        children: [],
+        object: null
+    }
+}
+
 export type PaymentStatus = 'draft' | 'issued' | 'paid' | 'due' | 'reminded' | 'cancelled'
 
 export interface Invoice {
diff --git a/routes/api.php b/routes/api.php
index 9628f2f..f753aa0 100644
--- a/routes/api.php
+++ b/routes/api.php
@@ -8,7 +8,9 @@
 use App\Http\Controllers\PaymentTermsController;
 use App\Http\Controllers\ProductController;
 use App\Http\Controllers\SettingController;
+use App\Http\Controllers\TodoController;
 use App\Mail\OrderConfirmation;
+use App\Services\CaldavService;
 
 Route::get('/customers/{id}', [CustomerController::class, 'single']);
 Route::get('/customers', [CustomerController::class, 'index']);
@@ -21,9 +23,14 @@
     ->defaults('modelType', 'customer')
     ->name('customers.notes.store');
 
-    
+
 Route::delete('/notes/{id}', [NoteController::class, 'delete']);
 
+Route::get('/todo-types', function () {
+    return \App\Models\TodoType::all();
+});
+Route::apiResource('/todos', TodoController::class);
+
 Route::get('/products/', [ProductController::class, 'index']);
 Route::get('/products/{id}', [ProductController::class, 'single']);
 
diff --git a/routes/web.php b/routes/web.php
index 6a5458d..acc2d62 100644
--- a/routes/web.php
+++ b/routes/web.php
@@ -2,6 +2,7 @@
 
 use Illuminate\Support\Facades\Route;
 use Inertia\Inertia;
+use App\Http\Controllers\TodoController;
 use App\Http\Controllers\InvoiceController;
 use App\Http\Controllers\CustomerController;
 use App\Http\Controllers\ProductController;