diff --git a/lib/composer/composer/autoload_classmap.php b/lib/composer/composer/autoload_classmap.php
index 247a140223d..9ecd43e8c70 100644
--- a/lib/composer/composer/autoload_classmap.php
+++ b/lib/composer/composer/autoload_classmap.php
@@ -477,6 +477,7 @@ return array(
     'OCP\\Files\\IMimeTypeDetector' => $baseDir . '/lib/public/Files/IMimeTypeDetector.php',
     'OCP\\Files\\IMimeTypeLoader' => $baseDir . '/lib/public/Files/IMimeTypeLoader.php',
     'OCP\\Files\\IRootFolder' => $baseDir . '/lib/public/Files/IRootFolder.php',
+    'OCP\\Files\\ISetupManager' => $baseDir . '/lib/public/Files/ISetupManager.php',
     'OCP\\Files\\InvalidCharacterInPathException' => $baseDir . '/lib/public/Files/InvalidCharacterInPathException.php',
     'OCP\\Files\\InvalidContentException' => $baseDir . '/lib/public/Files/InvalidContentException.php',
     'OCP\\Files\\InvalidDirectoryException' => $baseDir . '/lib/public/Files/InvalidDirectoryException.php',
diff --git a/lib/composer/composer/autoload_static.php b/lib/composer/composer/autoload_static.php
index 9f3d6c2c3dd..ca4e1fa53de 100644
--- a/lib/composer/composer/autoload_static.php
+++ b/lib/composer/composer/autoload_static.php
@@ -518,6 +518,7 @@ class ComposerStaticInit749170dad3f5e7f9ca158f5a9f04f6a2
         'OCP\\Files\\IMimeTypeDetector' => __DIR__ . '/../../..' . '/lib/public/Files/IMimeTypeDetector.php',
         'OCP\\Files\\IMimeTypeLoader' => __DIR__ . '/../../..' . '/lib/public/Files/IMimeTypeLoader.php',
         'OCP\\Files\\IRootFolder' => __DIR__ . '/../../..' . '/lib/public/Files/IRootFolder.php',
+        'OCP\\Files\\ISetupManager' => __DIR__ . '/../../..' . '/lib/public/Files/ISetupManager.php',
         'OCP\\Files\\InvalidCharacterInPathException' => __DIR__ . '/../../..' . '/lib/public/Files/InvalidCharacterInPathException.php',
         'OCP\\Files\\InvalidContentException' => __DIR__ . '/../../..' . '/lib/public/Files/InvalidContentException.php',
         'OCP\\Files\\InvalidDirectoryException' => __DIR__ . '/../../..' . '/lib/public/Files/InvalidDirectoryException.php',
diff --git a/lib/private/Files/SetupManager.php b/lib/private/Files/SetupManager.php
index 393a6a7de0f..a39a1d11b1b 100644
--- a/lib/private/Files/SetupManager.php
+++ b/lib/private/Files/SetupManager.php
@@ -1,11 +1,12 @@
 <?php
 
-declare(strict_types=1);
 /**
  * SPDX-FileCopyrightText: 2022 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
  */
 
+declare(strict_types=1);
+
 namespace OC\Files;
 
 use OC\Files\Cache\FileAccess;
@@ -13,8 +14,6 @@ use OC\Files\Config\MountProviderCollection;
 use OC\Files\Mount\HomeMountPoint;
 use OC\Files\Mount\MountPoint;
 use OC\Files\Storage\Common;
-use OC\Files\Storage\Home;
-use OC\Files\Storage\Storage;
 use OC\Files\Storage\Wrapper\Availability;
 use OC\Files\Storage\Wrapper\Encoding;
 use OC\Files\Storage\Wrapper\PermissionsMask;
@@ -43,6 +42,7 @@ use OCP\Files\Events\BeforeFileSystemSetupEvent;
 use OCP\Files\Events\InvalidateMountCacheEvent;
 use OCP\Files\Events\Node\BeforeNodeRenamedEvent;
 use OCP\Files\Events\Node\FilesystemTornDownEvent;
+use OCP\Files\ISetupManager;
 use OCP\Files\Mount\IMountManager;
 use OCP\Files\Mount\IMountPoint;
 use OCP\Files\NotFoundException;
@@ -57,13 +57,14 @@ use OCP\IUserManager;
 use OCP\IUserSession;
 use OCP\Lockdown\ILockdownManager;
 use OCP\Share\Events\ShareCreatedEvent;
+use Override;
 use Psr\Log\LoggerInterface;
 use function array_key_exists;
 use function count;
 use function dirname;
 use function in_array;
 
-class SetupManager {
+class SetupManager implements ISetupManager {
 	private bool $rootSetup = false;
 	// List of users for which at least one mount is setup
 	private array $setupUsers = [];
@@ -143,7 +144,7 @@ class SetupManager {
 		return false;
 	}
 
-	private function setupBuiltinWrappers() {
+	private function setupBuiltinWrappers(): void {
 		if ($this->setupBuiltinWrappersDone) {
 			return;
 		}
@@ -256,9 +257,7 @@ class SetupManager {
 		$updatingProviders = false;
 	}
 
-	/**
-	 * Setup the full filesystem for the specified user
-	 */
+	#[Override]
 	public function setupForUser(IUser $user): void {
 		if ($this->isSetupComplete($user)) {
 			return;
@@ -711,7 +710,8 @@ class SetupManager {
 		$this->eventLogger->end('fs:setup:user:providers');
 	}
 
-	public function tearDown() {
+	#[Override]
+	public function tearDown(): void {
 		$this->setupUsers = [];
 		$this->setupUsersComplete = [];
 		$this->setupUserMountProviders = [];
diff --git a/lib/private/Server.php b/lib/private/Server.php
index 04db3eea842..a14ff622647 100644
--- a/lib/private/Server.php
+++ b/lib/private/Server.php
@@ -287,6 +287,7 @@ class Server extends ServerContainer implements IServerContainer {
 		$this->registerAlias(\OCP\Contacts\IManager::class, \OC\ContactsManager::class);
 
 		$this->registerAlias(\OCP\ContextChat\IContentManager::class, \OC\ContextChat\ContentManager::class);
+		$this->registerAlias(\OCP\Files\ISetupManager::class, \OC\Files\SetupManager::class);
 
 		$this->registerAlias(\OCP\DirectEditing\IManager::class, \OC\DirectEditing\Manager::class);
 		$this->registerAlias(ITemplateManager::class, TemplateManager::class);
diff --git a/lib/public/Files/ISetupManager.php b/lib/public/Files/ISetupManager.php
new file mode 100644
index 00000000000..6567fea30cb
--- /dev/null
+++ b/lib/public/Files/ISetupManager.php
@@ -0,0 +1,33 @@
+<?php
+
+/**
+ * SPDX-FileCopyrightText: 2026 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+declare(strict_types=1);
+
+namespace OCP\Files;
+
+use OCP\AppFramework\Attribute\Consumable;
+use OCP\IUser;
+
+/**
+ * The files setup manager allow to set up the file system for specific users and
+ * also to tear it down when no longer needed.
+ *
+ * @since 34.0.0
+ */
+#[Consumable(since: '34.0.0')]
+interface ISetupManager {
+
+	/**
+	 * Set up the full filesystem for a specified user.
+	 */
+	public function setupForUser(IUser $user): void;
+
+	/**
+	 * Tear down all file systems to free some memory.
+	 */
+	public function tearDown(): void;
+}