different names in different dynamics

app/Http/Controllers/DynamicController.php

@@ -54,7 +54,7 @@ class DynamicController extends Controller
 
         $dynamic->load([
             'ledgers.media',
-            'participants',
+            'participants' => fn($query) => $query->withPivot('display_name'),
             'chat.messages.user',
             'chat.messages.media'
         ]);

app/Http/Controllers/LedgerController.php

@@ -64,7 +64,7 @@ class LedgerController extends Controller
 
         $activityService->updateCursor($request->user(), $ledger);
 
-        $dynamic->load('chat', 'participants');
+        $dynamic->load(['chat', 'participants' => fn($query) => $query->withPivot('display_name')]);
 
         $ledger->load([
             'media',

app/Http/Controllers/ParticipantController.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use App\Models\Dynamic;
+use Illuminate\Http\Request;
+
+class ParticipantController extends Controller
+{
+    public function update(Request $request, Dynamic $dynamic)
+    {
+        $request->validate([
+            'display_name' => ['required', 'string', 'max:255'],
+        ]);
+
+        $participant = $dynamic->participants()->where('user_id', $request->user()->id)->firstOrFail();
+
+        $dynamic->participants()->updateExistingPivot($participant->id, [
+            'display_name' => $request->input('display_name'),
+        ]);
+
+        return redirect()->back()->with('success', 'Display name updated successfully!');
+    }
+}