A lot of things.

app/Auth/XenForoGuard.php

@@ -74,4 +74,9 @@ class XenForoGuard implements Guard
         $this->user = $user;
     }
 
+    public function logout(): void
+    {
+        redirect('/');
+    }
+
 }

app/Auth/XenForoUser.php

@@ -4,10 +4,13 @@ namespace App\Auth;
 
 use App\Services\XenforoService;
 use App\XenForoDataTypes\XenForoData;
+use Filament\Models\Contracts\FilamentUser;
+use Filament\Models\Contracts\HasName;
+use Filament\Panel;
 use Illuminate\Contracts\Auth\Access\Authorizable;
 use Illuminate\Contracts\Auth\Authenticatable;
 
-class XenForoUser extends XenForoData implements Authenticatable, Authorizable {
+class XenForoUser extends XenForoData implements Authenticatable, Authorizable, FilamentUser, HasName {
 
     use \Illuminate\Foundation\Auth\Access\Authorizable;
 
@@ -75,4 +78,31 @@ class XenForoUser extends XenForoData implements Authenticatable, Authorizable {
 
         return ($this->permissions[$permissionGroup][$permissionName] ?? 0) === true;
     }
+
+    /* FILAMENT COMPATIBILITY */
+
+    public function canAccessPanel(Panel $panel): bool
+    {
+        return $this->is_admin === 1;
+    }
+
+    public function getFilamentName(): string
+    {
+        return $this->username ?? "XF";
+    }
+
+    public function getAttributeValue($key)
+    {
+        return $this->{$key} ?? null;
+    }
+
+    public function getKey()
+    {
+        return $this->data->user_id;
+    }
+
+    public function getKeyName()
+    {
+        return 'user_id';
+    }
 }