diff --git a/app/Http/Livewire/Auth/LNUrlAuth.php b/app/Http/Livewire/Auth/LNUrlAuth.php
index da749005..bcc493b4 100644
--- a/app/Http/Livewire/Auth/LNUrlAuth.php
+++ b/app/Http/Livewire/Auth/LNUrlAuth.php
@@ -58,7 +58,6 @@ class LNUrlAuth extends Component
 
             \App\Models\User::find(1)
                             ->notify(new ModelCreatedNotification($user, 'users'));
-
             auth()->login($user);
 
             return to_route('welcome');
diff --git a/app/Http/Livewire/Wallet/LightningWallet.php b/app/Http/Livewire/Wallet/LightningWallet.php
new file mode 100644
index 00000000..f501f7e8
--- /dev/null
+++ b/app/Http/Livewire/Wallet/LightningWallet.php
@@ -0,0 +1,71 @@
+<?php
+
+namespace App\Http\Livewire\Wallet;
+
+use App\Models\LoginKey;
+use eza\lnurl;
+use Livewire\Component;
+use SimpleSoftwareIO\QrCode\Facades\QrCode;
+
+class LightningWallet extends Component
+{
+    public ?string $k1 = null;
+    public ?string $url = null;
+    public ?string $lnurl = null;
+    public ?string $qrCode = null;
+
+    public bool $confirmed = false;
+
+    public function rules()
+    {
+        return [
+            'k1'     => 'required',
+            'url'    => 'required',
+            'lnurl'  => 'required',
+            'qrCode' => 'required',
+        ];
+    }
+
+    public function mount()
+    {
+        $this->k1 = bin2hex(str()->random(32));
+        if (app()->environment('local')) {
+            $this->url = 'https://einundzwanzig.eu-1.sharedwithexpose.com/api/lnurl-auth-callback?tag=login&k1='.$this->k1.'&action=login';
+        } else {
+            $this->url = url('/api/lnurl-auth-callback?tag=login&k1='.$this->k1.'&action=login');
+        }
+        $this->lnurl = lnurl\encodeUrl($this->url);
+        $this->qrCode = base64_encode(QrCode::format('png')
+                                            ->size(300)
+                                            ->merge('/public/android-chrome-192x192.png', .3)
+                                            ->errorCorrection('H')
+                                            ->generate($this->lnurl));
+    }
+
+    public function confirm()
+    {
+        $user = auth()->user();
+        $user->change = $this->k1;
+        $user->change_time = now();
+        $user->save();
+        $this->confirmed = true;
+    }
+
+    public function checkAuth()
+    {
+        $loginKey = LoginKey::query()
+                            ->where('k1', $this->k1)
+                            ->whereDate('created_at', '>=', now()->subMinutes(5))
+                            ->first();
+        // you should also restrict this 👆🏻 by time, and find only the $k1 that were created in the last 5 minutes
+
+        if ($loginKey) {
+            return to_route('welcome');
+        }
+    }
+
+    public function render()
+    {
+        return view('livewire.wallet.lightning-wallet');
+    }
+}
diff --git a/database/migrations/2023_02_25_180846_add_change_field_to_users_table.php b/database/migrations/2023_02_25_180846_add_change_field_to_users_table.php
new file mode 100644
index 00000000..7e07250c
--- /dev/null
+++ b/database/migrations/2023_02_25_180846_add_change_field_to_users_table.php
@@ -0,0 +1,28 @@
+<?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::table('users', function (Blueprint $table) {
+            $table->string('change')
+                  ->nullable();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::table('users', function (Blueprint $table) {
+            //
+        });
+    }
+};
diff --git a/database/migrations/2023_02_25_181435_add_change_time_field_to_users_table.php b/database/migrations/2023_02_25_181435_add_change_time_field_to_users_table.php
new file mode 100644
index 00000000..e310cf3a
--- /dev/null
+++ b/database/migrations/2023_02_25_181435_add_change_time_field_to_users_table.php
@@ -0,0 +1,28 @@
+<?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::table('users', function (Blueprint $table) {
+            $table->dateTime('change_time')
+                  ->nullable();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::table('users', function (Blueprint $table) {
+            //
+        });
+    }
+};
diff --git a/resources/lang/de.json b/resources/lang/de.json
index a894eaa2..b4a4dec6 100644
--- a/resources/lang/de.json
+++ b/resources/lang/de.json
@@ -570,7 +570,7 @@
     "Laravel Nova": "",
     "Laravel Nova :version": "",
     "Are you sure you want to ' + mode + ' the selected resources?": "",
-    ":name\\'s Avatar": "",
+    ":name's Avatar": "",
     "ID": "",
     "Action Name": "",
     "Action Initiated By": "",
@@ -652,7 +652,7 @@
     "choice": "Auswahl",
     "By id": "nach ID",
     "Twitter": "",
-    "New City": "Neue Stadt / Gegend",
+    "New City": "Neue Stadt \/ Gegend",
     "My meetups": "Meine Meetups",
     "please limit your search here": "bitte begrenze deine Suche hier",
     "Deselect": "Abwählen",
@@ -766,7 +766,19 @@
     "Article already tweeted": "Artikel bereits getwittert",
     "Is this a news article?": "Dieser Artikel ist ein News-Artikel",
     "Are your sure?": "Bist du dir sicher?",
-    "Nostr public key": "",
+    "Nostr public key": "Nostr öffentlicher Schlüssel",
     "Amount": "Anzahl",
-    "City\/Area": "Stadt\/Gegend"
+    "City\/Area": "Stadt\/Gegend",
+    "Published on Nostr": "Veröffentlicht auf Nostr",
+    "Public Key": "Public Key",
+    "Bitcoin Event": "",
+    "Create venue": "Erstelle Veranstaltungsort",
+    "starts with npub...": "startet mit npub...",
+    "Are you sure you want to publish this article on Nostr?": "Bitte bestätige, dass du diesen Artikel auf Nostr veröffentlichen möchtest.",
+    "Publish on Nostr": "Veröffentliche auf Nostr",
+    "nostr": "",
+    "Caution": "Vorsicht",
+    "You overwrite your user's public key and then have to log in with the wallet, which you now use to scan or log in.": "Du überschreibst deinen öffentlichen Schlüssel und musst dich dann mit der Wallet, die du jetzt zum Scannen oder Einloggen verwendest, anmelden.",
+    "You are logged in as:": "Du bist angemeldet als:",
+    "Change lightning wallet\/pubkey": "Wechsel Lightning Wallet\/Public Key"
 }
diff --git a/resources/lang/en.json b/resources/lang/en.json
index 37e86190..bbbe1af5 100644
--- a/resources/lang/en.json
+++ b/resources/lang/en.json
@@ -765,5 +765,17 @@
     "Are your sure?": "",
     "Nostr public key": "",
     "Amount": "",
-    "City\/Area": ""
+    "City\/Area": "",
+    "Published on Nostr": "",
+    "Public Key": "",
+    "Bitcoin Event": "",
+    "Create venue": "",
+    "starts with npub...": "",
+    "Are you sure you want to publish this article on Nostr?": "",
+    "Publish on Nostr": "",
+    "nostr": "",
+    "Caution": "",
+    "You overwrite your user\\'s public key and then have to log in with the wallet, which you now use to scan or log in.": "",
+    "You are logged in as:": "",
+    "Change lightning wallet\/pubkey": ""
 }
\ No newline at end of file
diff --git a/resources/lang/es.json b/resources/lang/es.json
index 9788d5ad..a2f57dc9 100644
--- a/resources/lang/es.json
+++ b/resources/lang/es.json
@@ -765,5 +765,17 @@
     "Are your sure?": "",
     "Nostr public key": "",
     "Amount": "",
-    "City\/Area": ""
+    "City\/Area": "",
+    "Published on Nostr": "",
+    "Public Key": "",
+    "Bitcoin Event": "",
+    "Create venue": "",
+    "starts with npub...": "",
+    "Are you sure you want to publish this article on Nostr?": "",
+    "Publish on Nostr": "",
+    "nostr": "",
+    "Caution": "",
+    "You overwrite your user\\'s public key and then have to log in with the wallet, which you now use to scan or log in.": "",
+    "You are logged in as:": "",
+    "Change lightning wallet\/pubkey": ""
 }
\ No newline at end of file
diff --git a/resources/lang/fr.json b/resources/lang/fr.json
index ed8c77a6..9cb598b3 100644
--- a/resources/lang/fr.json
+++ b/resources/lang/fr.json
@@ -766,5 +766,17 @@
     "Are your sure?": "",
     "Nostr public key": "",
     "Amount": "",
-    "City\/Area": ""
+    "City\/Area": "",
+    "Published on Nostr": "",
+    "Public Key": "",
+    "Bitcoin Event": "",
+    "Create venue": "",
+    "starts with npub...": "",
+    "Are you sure you want to publish this article on Nostr?": "",
+    "Publish on Nostr": "",
+    "nostr": "",
+    "Caution": "",
+    "You overwrite your user\\'s public key and then have to log in with the wallet, which you now use to scan or log in.": "",
+    "You are logged in as:": "",
+    "Change lightning wallet\/pubkey": ""
 }
\ No newline at end of file
diff --git a/resources/lang/hr.json b/resources/lang/hr.json
index 24a51638..5621dfff 100644
--- a/resources/lang/hr.json
+++ b/resources/lang/hr.json
@@ -766,5 +766,17 @@
     "Are your sure?": "",
     "Nostr public key": "",
     "Amount": "",
-    "City\/Area": ""
+    "City\/Area": "",
+    "Published on Nostr": "",
+    "Public Key": "",
+    "Bitcoin Event": "",
+    "Create venue": "",
+    "starts with npub...": "",
+    "Are you sure you want to publish this article on Nostr?": "",
+    "Publish on Nostr": "",
+    "nostr": "",
+    "Caution": "",
+    "You overwrite your user\\'s public key and then have to log in with the wallet, which you now use to scan or log in.": "",
+    "You are logged in as:": "",
+    "Change lightning wallet\/pubkey": ""
 }
\ No newline at end of file
diff --git a/resources/lang/it.json b/resources/lang/it.json
index a7d80ca1..74643c40 100644
--- a/resources/lang/it.json
+++ b/resources/lang/it.json
@@ -766,5 +766,17 @@
     "Are your sure?": "",
     "Nostr public key": "",
     "Amount": "",
-    "City\/Area": ""
+    "City\/Area": "",
+    "Published on Nostr": "",
+    "Public Key": "",
+    "Bitcoin Event": "",
+    "Create venue": "",
+    "starts with npub...": "",
+    "Are you sure you want to publish this article on Nostr?": "",
+    "Publish on Nostr": "",
+    "nostr": "",
+    "Caution": "",
+    "You overwrite your user\\'s public key and then have to log in with the wallet, which you now use to scan or log in.": "",
+    "You are logged in as:": "",
+    "Change lightning wallet\/pubkey": ""
 }
\ No newline at end of file
diff --git a/resources/lang/mk.json b/resources/lang/mk.json
index e696fe49..6a330c44 100644
--- a/resources/lang/mk.json
+++ b/resources/lang/mk.json
@@ -766,5 +766,17 @@
     "Are your sure?": "",
     "Nostr public key": "",
     "Amount": "",
-    "City\/Area": ""
+    "City\/Area": "",
+    "Published on Nostr": "",
+    "Public Key": "",
+    "Bitcoin Event": "",
+    "Create venue": "",
+    "starts with npub...": "",
+    "Are you sure you want to publish this article on Nostr?": "",
+    "Publish on Nostr": "",
+    "nostr": "",
+    "Caution": "",
+    "You overwrite your user\\'s public key and then have to log in with the wallet, which you now use to scan or log in.": "",
+    "You are logged in as:": "",
+    "Change lightning wallet\/pubkey": ""
 }
\ No newline at end of file
diff --git a/resources/lang/pl.json b/resources/lang/pl.json
index bd1810c5..57534d78 100644
--- a/resources/lang/pl.json
+++ b/resources/lang/pl.json
@@ -766,5 +766,17 @@
     "Are your sure?": "",
     "Nostr public key": "",
     "Amount": "",
-    "City\/Area": ""
+    "City\/Area": "",
+    "Published on Nostr": "",
+    "Public Key": "",
+    "Bitcoin Event": "",
+    "Create venue": "",
+    "starts with npub...": "",
+    "Are you sure you want to publish this article on Nostr?": "",
+    "Publish on Nostr": "",
+    "nostr": "",
+    "Caution": "",
+    "You overwrite your user\\'s public key and then have to log in with the wallet, which you now use to scan or log in.": "",
+    "You are logged in as:": "",
+    "Change lightning wallet\/pubkey": ""
 }
\ No newline at end of file
diff --git a/resources/lang/pt.json b/resources/lang/pt.json
index ce5f8ed0..ebe53b19 100644
--- a/resources/lang/pt.json
+++ b/resources/lang/pt.json
@@ -766,5 +766,17 @@
     "Are your sure?": "",
     "Nostr public key": "",
     "Amount": "",
-    "City\/Area": ""
+    "City\/Area": "",
+    "Published on Nostr": "",
+    "Public Key": "",
+    "Bitcoin Event": "",
+    "Create venue": "",
+    "starts with npub...": "",
+    "Are you sure you want to publish this article on Nostr?": "",
+    "Publish on Nostr": "",
+    "nostr": "",
+    "Caution": "",
+    "You overwrite your user\\'s public key and then have to log in with the wallet, which you now use to scan or log in.": "",
+    "You are logged in as:": "",
+    "Change lightning wallet\/pubkey": ""
 }
\ No newline at end of file
diff --git a/resources/lang/sv.json b/resources/lang/sv.json
index 61b99120..85a09f19 100644
--- a/resources/lang/sv.json
+++ b/resources/lang/sv.json
@@ -728,5 +728,17 @@
     "Are your sure?": "",
     "Nostr public key": "",
     "Amount": "",
-    "City\/Area": ""
+    "City\/Area": "",
+    "Published on Nostr": "",
+    "Public Key": "",
+    "Bitcoin Event": "",
+    "Create venue": "",
+    "starts with npub...": "",
+    "Are you sure you want to publish this article on Nostr?": "",
+    "Publish on Nostr": "",
+    "nostr": "",
+    "Caution": "",
+    "You overwrite your user\\'s public key and then have to log in with the wallet, which you now use to scan or log in.": "",
+    "You are logged in as:": "",
+    "Change lightning wallet\/pubkey": ""
 }
\ No newline at end of file
diff --git a/resources/lang/tr.json b/resources/lang/tr.json
index 15de22ab..852ff07b 100644
--- a/resources/lang/tr.json
+++ b/resources/lang/tr.json
@@ -740,5 +740,17 @@
     "Are your sure?": "",
     "Nostr public key": "",
     "Amount": "",
-    "City\/Area": ""
+    "City\/Area": "",
+    "Published on Nostr": "",
+    "Public Key": "",
+    "Bitcoin Event": "",
+    "Create venue": "",
+    "starts with npub...": "",
+    "Are you sure you want to publish this article on Nostr?": "",
+    "Publish on Nostr": "",
+    "nostr": "",
+    "Caution": "",
+    "You overwrite your user\\'s public key and then have to log in with the wallet, which you now use to scan or log in.": "",
+    "You are logged in as:": "",
+    "Change lightning wallet\/pubkey": ""
 }
\ No newline at end of file
diff --git a/resources/views/livewire/wallet/lightning-wallet.blade.php b/resources/views/livewire/wallet/lightning-wallet.blade.php
new file mode 100644
index 00000000..ef51ecb3
--- /dev/null
+++ b/resources/views/livewire/wallet/lightning-wallet.blade.php
@@ -0,0 +1,100 @@
+<x-jet-authentication-card>
+    <x-slot name="logo">
+        <x-jet-authentication-card-logo/>
+    </x-slot>
+
+    <div>
+
+        <div>
+
+            <div class="text-center text-2xl text-gray-800 mt-6">
+                Now log in with a new wallet ⚡
+            </div>
+
+            <div class="rounded-md bg-red-50 p-4 my-2">
+                <div class="flex">
+                    <div class="flex-shrink-0">
+                        <svg class="h-5 w-5 text-red-400" viewBox="0 0 20 20" fill="currentColor" aria-hidden="true">
+                            <path fill-rule="evenodd"
+                                  d="M10 18a8 8 0 100-16 8 8 0 000 16zM8.28 7.22a.75.75 0 00-1.06 1.06L8.94 10l-1.72 1.72a.75.75 0 101.06 1.06L10 11.06l1.72 1.72a.75.75 0 101.06-1.06L11.06 10l1.72-1.72a.75.75 0 00-1.06-1.06L10 8.94 8.28 7.22z"
+                                  clip-rule="evenodd"/>
+                        </svg>
+                    </div>
+                    <div class="ml-3">
+                        <h3 class="text-sm font-medium text-red-800">{{ __('Caution') }}</h3>
+                        <div class="mt-2 text-sm text-red-700">
+                            <ul role="list" class="list-disc space-y-1 pl-5">
+                                <li>{{ __('You overwrite your user\'s public key and then have to log in with the wallet, which you now use to scan or log in.') }}</li>
+                                <li>{{ __('You are logged in as:') }} {{ auth()->user()->name }}</li>
+                            </ul>
+                        </div>
+                    </div>
+                </div>
+            </div>
+
+            @if(!$confirmed)
+                <div>
+                    <x-button primary wire:click="confirm">
+                        <i class="fa-thin fa-check"></i>
+                        {{ __('Confirm') }}
+                    </x-button>
+                </div>
+            @endif
+
+            @if($confirmed)
+                <div class="flex justify-center" wire:key="qrcode">
+                    <a href="lightning:{{ $this->lnurl }}">
+                        <img src="{{ 'data:image/png;base64, '. $this->qrCode }}" alt="qrcode">
+                    </a>
+                </div>
+                <div class="my-2 flex justify-center font-mono break-all">
+                    <input class="w-full" readonly wire:key="lnurl" onClick="this.select();"
+                           value="lightning:{{ $this->lnurl }}"/>
+                </div>
+                <div class="flex justify-between w-full">
+                    <div
+                        x-data="{
+                      textToCopy: 'lightning:{{ $this->lnurl }}',
+                    }"
+                        @click.prevent="window.navigator.clipboard.writeText(textToCopy);window.$wireui.notify({title:'{{ __('URL copied!') }}',icon:'success'});"
+                    >
+                        <x-button
+                            black
+                        >
+                            <i class="fa fa-thin fa-clipboard"></i>
+                            {{ __('Copy') }}
+                        </x-button>
+                    </div>
+                    <div
+                        x-data="{
+                      textToCopy: 'lightning:{{ $this->lnurl }}',
+                    }"
+                        @click.prevent="window.navigator.clipboard.writeText(textToCopy);window.$wireui.notify({title:'{{ __('URL copied!') }}',icon:'success'});"
+                    >
+                        <x-button
+                            primary
+                            black
+                            :href="'lightning:'.$this->lnurl"
+                        >
+                            {{ __('Click to connect') }}
+                            <svg stroke="currentColor" fill="currentColor" stroke-width="0" viewBox="0 0 512 512"
+                                 height="1em" width="1em" xmlns="http://www.w3.org/2000/svg">
+                                <path fill="none" stroke-linecap="round" stroke-linejoin="round" stroke-width="32"
+                                      d="M461.81 53.81a4.4 4.4 0 00-3.3-3.39c-54.38-13.3-180 34.09-248.13 102.17a294.9 294.9 0 00-33.09 39.08c-21-1.9-42-.3-59.88 7.5-50.49 22.2-65.18 80.18-69.28 105.07a9 9 0 009.8 10.4l81.07-8.9a180.29 180.29 0 001.1 18.3 18.15 18.15 0 005.3 11.09l31.39 31.39a18.15 18.15 0 0011.1 5.3 179.91 179.91 0 0018.19 1.1l-8.89 81a9 9 0 0010.39 9.79c24.9-4 83-18.69 105.07-69.17 7.8-17.9 9.4-38.79 7.6-59.69a293.91 293.91 0 0039.19-33.09c68.38-68 115.47-190.86 102.37-247.95zM298.66 213.67a42.7 42.7 0 1160.38 0 42.65 42.65 0 01-60.38 0z"></path>
+                                <path fill="none" stroke-linecap="round" stroke-linejoin="round" stroke-width="32"
+                                      d="M109.64 352a45.06 45.06 0 00-26.35 12.84C65.67 382.52 64 448 64 448s65.52-1.67 83.15-19.31A44.73 44.73 0 00160 402.32"></path>
+                            </svg>
+                        </x-button>
+                    </div>
+                </div>
+
+                <div class="pt-12" x-show="!currentUser">
+                    {{ __('Scan this code or copy & paste it to your lightning wallet. Or click to login with your wallet.') }}
+                </div>
+            @endif
+        </div>
+
+    </div>
+
+    <div wire:poll="checkAuth" wire:key="checkAuth"></div>
+</x-jet-authentication-card>
diff --git a/resources/views/navigation-menu.blade.php b/resources/views/navigation-menu.blade.php
index f01b6b5b..2b8b6f5c 100644
--- a/resources/views/navigation-menu.blade.php
+++ b/resources/views/navigation-menu.blade.php
@@ -35,6 +35,14 @@
                             {{ __('My profile') }}
                         </x-button>
                     </div>
+
+                    <div>
+                        <x-button xs amber href="{{ route('profile.wallet') }}"
+                                  :active="request()->routeIs('profile.wallet')">
+                            <i class="fa fa-thin fa-user"></i>
+                            {{ __('Change lightning wallet/pubkey') }}
+                        </x-button>
+                    </div>
                 </div>
             </div>
 
diff --git a/routes/api.php b/routes/api.php
index 68b35445..577734f7 100644
--- a/routes/api.php
+++ b/routes/api.php
@@ -95,21 +95,32 @@ Route::middleware([])
 Route::get('/lnurl-auth-callback', function (Request $request) {
     if (lnurl\auth($request->k1, $request->sig, $request->key)) {
         // find User by $wallet_public_key
-        $user = User::query()
-                    ->whereBlind('public_key', 'public_key_index', $request->key)
-                    ->first();
+        if ($user = User::query()
+                        ->where('change', $request->k1)
+                        ->where('change_time', '>', now()->subMinutes(5))
+                        ->first()) {
+            $user->public_key = $request->key;
+            $user->change = null;
+            $user->change_time = null;
+            $user->save();
+        } else {
+            $user = User::query()
+                        ->whereBlind('public_key', 'public_key_index', $request->key)
+                        ->first();
+        }
         if (!$user) {
+            $fakeName = str()->random(10);
             // create User
             $user = User::create([
                 'public_key'  => $request->key,
                 'is_lecturer' => true,
-                'name'        => $request->key,
+                'name'        => $fakeName,
                 'email'       => str($request->key)->substr(-12).'@portal.einundzwanzig.space',
             ]);
             $user->ownedTeams()
                  ->save(Team::forceCreate([
                      'user_id'       => $user->id,
-                     'name'          => $request->key."'s Team",
+                     'name'          => $fakeName."'s Team",
                      'personal_team' => true,
                  ]));
         }
diff --git a/routes/web.php b/routes/web.php
index ef7e568a..72a9921b 100644
--- a/routes/web.php
+++ b/routes/web.php
@@ -103,10 +103,18 @@ Route::middleware([])
      ->get('/lecturer-material/{libraryItem:slug}', \App\Http\Livewire\News\InternArticleView::class)
      ->name('lecturerMaterial.view');
 
-Route::middleware([])
+Route::middleware([
+    'auth',
+])
      ->get('/my-meetups', \App\Http\Livewire\Profile\Meetups::class)
      ->name('profile.meetups');
 
+Route::middleware([
+    'auth',
+])
+     ->get('/my-lightning-wallet', \App\Http\Livewire\Wallet\LightningWallet::class)
+     ->name('profile.wallet');
+
 Route::get('/auth/ln', \App\Http\Livewire\Auth\LNUrlAuth::class)
      ->name('auth.ln');