Few changes

Assets/Scripts/ApplicationLifetimeScope.cs

@@ -1,12 +1,17 @@
 using MessagePipe;
+using Players;
+using UnityEngine;
 using VContainer;
 using VContainer.Unity;
 
 public sealed class ApplicationLifetimeScope : LifetimeScope
 {
+    [SerializeField] private PlayerNameService _playerNameService;
+    
     protected override void Configure(IContainerBuilder builder)
     {
         RegisterMessagePipe(builder);
+        RegisterServices(builder);
     }
 
     private void RegisterMessagePipe(IContainerBuilder builder)
@@ -27,4 +32,9 @@ public sealed class ApplicationLifetimeScope : LifetimeScope
             builder.RegisterMessagePipe();
 #endif
     }
+
+    private void RegisterServices(IContainerBuilder builder)
+    {
+        builder.RegisterInstance(_playerNameService).AsSelf();
+    }
 }

Assets/Scripts/Players/PlayerNameService.cs

@@ -0,0 +1,25 @@
+using System;
+using FishNet.Connection;
+using FishNet.Object;
+using FishNet.Object.Synchronizing;
+using UnityEngine;
+
+namespace Players
+{
+    public sealed class PlayerNameService : NetworkBehaviour
+    {
+        public static event Action<NetworkConnection, string> OnPlayerNameChange;
+        
+        private readonly SyncDictionary<NetworkConnection, string> _playerNames = new();
+
+        private void Awake()
+        {
+            _playerNames.OnChange += OnPlayerNamesChange;
+        }
+
+        private void OnPlayerNamesChange(SyncDictionaryOperation op, NetworkConnection key, string value, bool asServer)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}

Assets/Scripts/Players/PlayerNameService.cs.meta

@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: 0f8a0d6abee44a7282f69c32e04a6f4c
+timeCreated: 1775595133