diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..82cfc4e
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+.idea
+composer.lock
+vendor
diff --git a/README.md b/README.md
index 4da57f1..44bb13f 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,5 @@
-# utils
-Collection of utilites for easier development and app running
+# Dev Portal / Utils
+Collection of utilities for easier development and app running
+
+## Documentation
+Documentation can be found [here](https://github.com/dev-portal/utils/blob/master/docs/en/index.md)
diff --git a/composer.json b/composer.json
new file mode 100644
index 0000000..87638f5
--- /dev/null
+++ b/composer.json
@@ -0,0 +1,24 @@
+{
+	"name": "dev-portal/utils",
+	"description": "Collection of utilities for easier development and app running",
+	"type": "library",
+	"license": "MIT",
+	"authors": [
+		{
+			"name": "Tomáš Blatný",
+			"email": "blatny.tomas@seznam.cz"
+		}
+	],
+	"require": {
+		"nette/di": "^2.3",
+		"nette/security": "^2.3"
+	},
+	"require-dev": {
+		"nette/tester": "^1.6"
+	},
+	"autoload": {
+		"psr-4": {
+			"DevPortal\\Utils\\": "src/Utils/"
+		}
+	}
+}
diff --git a/docs/en/index.md b/docs/en/index.md
new file mode 100644
index 0000000..d325f6f
--- /dev/null
+++ b/docs/en/index.md
@@ -0,0 +1,39 @@
+# Dev Portal / Utils
+
+## Installation
+
+Install using composer
+
+```sh
+$ composer require dev-portal/utils
+```
+
+## Modules
+
+### Namespace for UserStorage
+ 
+This module provides easy configuration of namespace for IUserStorage for Nette Framework.
+
+First enable it by registering extension into your config neon:
+
+```yml
+extensions:
+	userNamespace: DevPortal\Utils\DI\UserNamespaceExtension
+```
+
+You can then configure it:
+
+```yml
+userNamespace:
+	type: auto
+	namespace: foo.bar
+```
+
+`type` attribute can be:
+
+- `config` or `value` - uses directly namespace from `namespace` attribute
+- `dir` or `directory` - uses namespace dependent on absolute path of your project (`%wwwDir%`)
+- `auto` - if `namespace` is set, uses it, otherwise uses absolute path of your project
+
+You can also write your own `IUserNamespaceResolver` and register it under `resolverClass` attribute.
+This overrides predefined resolvers.
diff --git a/src/Utils/DI/UserNamespaceExtension.php b/src/Utils/DI/UserNamespaceExtension.php
new file mode 100644
index 0000000..b526c4a
--- /dev/null
+++ b/src/Utils/DI/UserNamespaceExtension.php
@@ -0,0 +1,98 @@
+<?php
+/**
+ * @author Tomáš Blatný
+ */
+
+namespace DevPortal\Utils\DI;
+
+use DevPortal\Utils\Security\IUserNamespaceResolver;
+use DevPortal\Utils\Security\NamespaceResolvers\ConfigResolver;
+use DevPortal\Utils\Security\NamespaceResolvers\DirectoryResolver;
+use Nette\DI\CompilerExtension;
+use Nette\DI\ServiceDefinition;
+use Nette\InvalidArgumentException;
+use Nette\Security\IUserStorage;
+
+
+class UserNamespaceExtension extends CompilerExtension
+{
+
+	private $defaults = [
+		'type' => 'auto',
+		'namespace' => NULL,
+		'resolverClass' => NULL,
+	];
+
+
+	public function loadConfiguration()
+	{
+		$config = $this->validateConfig($this->defaults);
+
+		if (isset($config['resolverClass']) && $config['resolverClass']) {
+			$this->getContainerBuilder()
+				->addDefinition($this->prefix('resolver'))
+				->setClass($config['resolverClass']);
+			return;
+		}
+
+		switch ($config['type']) {
+			case 'auto':
+				if (isset($config['namespace']) && $config['namespace']) {
+					$this->registerConfigResolver($config['namespace']);
+				} else {
+					$this->registerDirectoryResolver();
+				}
+			break;
+			case 'dir':
+			case 'directory':
+				$this->registerDirectoryResolver();
+				break;
+			case 'config':
+			case 'value':
+				if (!$config['namespace']) {
+					throw new InvalidArgumentException('Set configuration value ' . $this->name . '.namespace to use ConfigResolver.');
+				}
+				$this->registerConfigResolver($config['namespace']);
+				break;
+			default:
+				throw new InvalidArgumentException('Invalid configuration value ' . $this->name . '.type: ' . $config['type']);
+		}
+	}
+
+
+	public function beforeCompile()
+	{
+		$builder = $this->getContainerBuilder();
+
+		if ($name = $builder->getByType(IUserStorage::class)) {
+			$builder->getDefinition($name)
+				->addSetup('setNamespace', [$builder->getByType(IUserNamespaceResolver::class), 'resolve']);
+		}
+	}
+
+
+	/**
+	 * @param string $namespace
+	 * @return ServiceDefinition
+	 */
+	private function registerConfigResolver($namespace)
+	{
+		return $this->getContainerBuilder()
+			->addDefinition($this->prefix('resolver'))
+			->setClass(ConfigResolver::class)
+			->setArguments([$namespace]);
+	}
+
+
+	/**
+	 * @return ServiceDefinition
+	 */
+	private function registerDirectoryResolver()
+	{
+		return $this->getContainerBuilder()
+			->addDefinition($this->prefix('resolver'))
+			->setClass(DirectoryResolver::class)
+			->setArguments(['%wwwDir%']);
+	}
+
+}
diff --git a/src/Utils/Security/IUserNamespaceResolver.php b/src/Utils/Security/IUserNamespaceResolver.php
new file mode 100644
index 0000000..46d7d56
--- /dev/null
+++ b/src/Utils/Security/IUserNamespaceResolver.php
@@ -0,0 +1,14 @@
+<?php
+/**
+ * @author Tomáš Blatný
+ */
+
+namespace DevPortal\Utils\Security;
+
+interface IUserNamespaceResolver
+{
+
+	/** @return string */
+	function resolve();
+
+}
diff --git a/src/Utils/Security/NamespaceResolvers/ConfigResolver.php b/src/Utils/Security/NamespaceResolvers/ConfigResolver.php
new file mode 100644
index 0000000..4b3c55c
--- /dev/null
+++ b/src/Utils/Security/NamespaceResolvers/ConfigResolver.php
@@ -0,0 +1,31 @@
+<?php
+/**
+ * @author Tomáš Blatný
+ */
+
+namespace DevPortal\Utils\Security\NamespaceResolvers;
+
+use DevPortal\Utils\Security\IUserNamespaceResolver;
+
+
+class ConfigResolver implements IUserNamespaceResolver
+{
+
+
+	/** @var string */
+	private $namespace;
+
+
+	public function __construct($namespace)
+	{
+		$this->namespace = (string) $namespace;
+	}
+
+
+	/** @return string */
+	public function resolve()
+	{
+		return $this->namespace;
+	}
+
+}
diff --git a/src/Utils/Security/NamespaceResolvers/DirectoryResolver.php b/src/Utils/Security/NamespaceResolvers/DirectoryResolver.php
new file mode 100644
index 0000000..a27661e
--- /dev/null
+++ b/src/Utils/Security/NamespaceResolvers/DirectoryResolver.php
@@ -0,0 +1,30 @@
+<?php
+/**
+ * @author Tomáš Blatný
+ */
+
+namespace DevPortal\Utils\Security\NamespaceResolvers;
+
+use DevPortal\Utils\Security\IUserNamespaceResolver;
+
+
+class DirectoryResolver implements IUserNamespaceResolver
+{
+
+	/** @var string */
+	private $wwwDir;
+
+
+	public function __construct($wwwDir)
+	{
+		$this->wwwDir = $wwwDir;
+	}
+
+
+	/** @return string */
+	public function resolve()
+	{
+		return str_replace(DIRECTORY_SEPARATOR, '.', $this->wwwDir);
+	}
+
+}
diff --git a/tests/Utils/Security/NamespaceResolvers/ConfigResolver.phpt b/tests/Utils/Security/NamespaceResolvers/ConfigResolver.phpt
new file mode 100644
index 0000000..6630204
--- /dev/null
+++ b/tests/Utils/Security/NamespaceResolvers/ConfigResolver.phpt
@@ -0,0 +1,15 @@
+<?php
+/**
+ * Test: ConfigResolver
+ *
+ * @author Tomáš Blatný
+ */
+
+use DevPortal\Utils\Security\NamespaceResolvers\ConfigResolver;
+use Tester\Assert;
+
+require __DIR__ . "/../../../bootstrap.php";
+
+$resolver = new ConfigResolver('abc');
+
+Assert::equal('abc', $resolver->resolve());
diff --git a/tests/Utils/Security/NamespaceResolvers/DirectoryResolver.phpt b/tests/Utils/Security/NamespaceResolvers/DirectoryResolver.phpt
new file mode 100644
index 0000000..2289d9b
--- /dev/null
+++ b/tests/Utils/Security/NamespaceResolvers/DirectoryResolver.phpt
@@ -0,0 +1,16 @@
+<?php
+/**
+ * Test: DirectoryResolver
+ *
+ * @author Tomáš Blatný
+ */
+
+use DevPortal\Utils\Security\NamespaceResolvers\DirectoryResolver;
+use Tester\Assert;
+
+
+require __DIR__ . "/../../../bootstrap.php";
+
+$resolver = new DirectoryResolver(__DIR__);
+
+Assert::equal(str_replace(DIRECTORY_SEPARATOR, '.', __DIR__), $resolver->resolve());
diff --git a/tests/bootstrap.php b/tests/bootstrap.php
new file mode 100644
index 0000000..3294843
--- /dev/null
+++ b/tests/bootstrap.php
@@ -0,0 +1,8 @@
+<?php
+
+use Tester\Environment;
+
+
+require_once __DIR__ . '/../vendor/autoload.php';
+
+Environment::setup();