diff --git a/server/App/App.php b/server/App/App.php
new file mode 100644
index 0000000..2bc8c66
--- /dev/null
+++ b/server/App/App.php
@@ -0,0 +1,26 @@
+<?php
+
+namespace App;
+
+class App {
+	protected $router;
+	protected $db_instance;
+
+	public function db() {
+		return $this -> db_instance;
+	}
+
+	public function __construct() {
+		global $CNF;
+		$this -> router = new \Kernel\Classes\Router();
+		$this -> db_instance = new \Kernel\Classes\DB( $CNF["db"] );
+
+		include "routes_map.php";
+	}
+
+	public function init() {
+		init_routes_map($this -> router);
+		echo $this -> router -> routing();
+	}
+
+}
\ No newline at end of file
diff --git a/server/App/routes_map.php b/server/App/routes_map.php
new file mode 100644
index 0000000..20870e3
--- /dev/null
+++ b/server/App/routes_map.php
@@ -0,0 +1,20 @@
+<?php
+
+namespace App;
+
+function init_routes_map($router) {
+	$router -> linking("GET", "signup", function(){
+		$uname = $_GET["username"];
+		$password = $_GET["password"];
+
+		$auth = new Auth();
+
+		if($auth -> user_name_is_exists($uname)) {
+			return error("signup", "User name already exists");
+		}
+
+		$auth -> signup($uname, $password);
+
+		return 
+	});
+} 
\ No newline at end of file
diff --git a/server/Kernel/Classes/Auth.php b/server/Kernel/Classes/Auth.php
new file mode 100644
index 0000000..0d16ede
--- /dev/null
+++ b/server/Kernel/Classes/Auth.php
@@ -0,0 +1,37 @@
+<?php
+
+namespace Kernel\Classes;
+
+class Auth {
+	public function __construct() {
+
+	}
+
+	protected function user_name_is_exists(String $uname) : bool {
+		$user = new User();
+		$sql = "SELECT COUNT(*) FROM `{$user -> get_tablename()}` WHERE `name`='{$uname}'";
+		$result = app() -> db() -> query($sql);
+		$d = $result -> fetch_assoc();
+		return $d["COUNT(*)"] ? true : false;
+	} 
+
+	public function signup(String $uname, String $password): bool {
+		$passhash = sha1($password);
+		$uname = normalize_input_user_name($uname);
+
+		$user = new User();
+		$user -> name = $uname;
+		$user -> passhash = $passhash;
+		$user -> create_at = get_create_at_timestamp();
+
+		return $user -> create_new();
+	}
+
+	public function signin() {
+
+	}
+
+	public function signout() {
+
+	}
+}
\ No newline at end of file
diff --git a/server/Kernel/Classes/DB.php b/server/Kernel/Classes/DB.php
new file mode 100644
index 0000000..6a777a8
--- /dev/null
+++ b/server/Kernel/Classes/DB.php
@@ -0,0 +1,37 @@
+<?php
+
+namespace Kernel\Classes;
+
+class DB {
+	protected $connect_instance;
+	protected $db_config;
+
+	public function __construct(Array $db_config) {
+		$this -> db_config = $db_config;
+	}
+
+	public function connecting() {
+		$this -> connect_instance = new mysqli(
+			$this -> db_config["host"], 
+			$this -> db_config["user"], 
+			$this -> db_config["password"], 
+			$this -> db_config["name"]
+		);
+
+		if ($this -> connect_instance -> connect_error) {
+	    throw new Exception("Ошибка подключения: " . $this -> connect_instance -> connect_error);
+		}
+	}
+
+	public function query(String $sql) {
+		if(!$this -> connect_instance) {
+			$this -> connecting();
+		}
+
+		return $this -> connect_instance -> query($sql);
+	}
+
+	public function last_insert_id() {
+		return $this -> connect_instance -> insert_id;
+	}
+}
\ No newline at end of file
diff --git a/server/Kernel/Classes/Router.php b/server/Kernel/Classes/Router.php
new file mode 100644
index 0000000..d8838af
--- /dev/null
+++ b/server/Kernel/Classes/Router.php
@@ -0,0 +1,59 @@
+<?php
+
+namespace Kernel\Classes;
+
+class Router {
+	protected $routes = ["GET" => [], "POST" => []];
+	protected $err_404_handler;
+
+	public function __construct() {
+		$this -> err_404_handler = function(){ 
+			return "404";
+		};
+	}
+
+	public function routing() :String {
+		if(!isset($_GET["action"]) and !isset($_POST["action"])) {
+			return response_prepared($this -> err_404_handler());
+		}
+
+		$actions = [$_GET["action"] ?? "", $_POST["action"] ?? ""];
+
+		$results = [];
+		foreach(["GET", "POST"] as $i => $method) {
+			if(isset($this -> routes[$method][$actions[$i]])) {
+				$results = array_merge($results, $this -> call_action_handlers($this -> routes[$method][$actions[$i]]));
+			}
+		}
+
+		return response_prepared($results);
+	}
+
+	public function linking(String $method, String $action_name, $action) :bool {
+		if(!in_array($method, ["GET", "POST"])) {
+			return throw new Exception("Method `{$method}` no exists");
+		}
+
+		if(!isset($this -> routes[$method][$action_name])) {
+			$this -> routes[$method][$action_name] = [];
+		}
+
+		$this -> routes[$method][$action_name][] = $action;
+
+		return true;
+	} 
+
+	public function set_err_404($handler) {
+		return $this -> err_404_handler = $handler;
+	}
+
+	public function call_action_handlers(Array $handlers) :Array {
+		$results = [];
+
+		foreach($handlers as $handler) {
+			$results[] = $handler();
+		}
+
+		return $results;
+	}
+}
\ No newline at end of file
diff --git a/server/Kernel/Entity/Session.php b/server/Kernel/Entity/Session.php
new file mode 100644
index 0000000..a1d2fa5
--- /dev/null
+++ b/server/Kernel/Entity/Session.php
@@ -0,0 +1,20 @@
+<?php
+
+namespace Kernel\Entity;
+
+class Session {
+	use libs\DataContain;
+	use libs\DataStorage;
+
+	public function __construct() {
+		$this -> set_tablename("session");
+
+		$this -> set_fields([
+			"id", "user_id", "token", "state", "create_at"
+		]);
+	}
+
+	public function force_activity() {
+
+	}
+}
\ No newline at end of file
diff --git a/server/Kernel/Entity/User.php b/server/Kernel/Entity/User.php
new file mode 100644
index 0000000..5f0a5fa
--- /dev/null
+++ b/server/Kernel/Entity/User.php
@@ -0,0 +1,21 @@
+<?php
+
+namespace Kernel\Entity;
+
+class User {
+
+	use libs\DataContain;
+	use libs\DataStorage;
+
+	public function __construct() {
+		$this -> set_tablename("user");
+
+		$this -> set_fields([
+			"id", "name", "passhash", "create_at"
+		]);
+	}
+
+	public function init_by_id(int $id) :bool {
+
+	} 
+}
\ No newline at end of file
diff --git a/server/Kernel/load.php b/server/Kernel/load.php
new file mode 100644
index 0000000..457ea64
--- /dev/null
+++ b/server/Kernel/load.php
@@ -0,0 +1,18 @@
+<?php
+
+include "libs/utils.php";
+
+spl_autoload_register(function ($class) {
+	// Заменяем обратные слэши на прямые в названии класса
+	$file = str_replace('\\', DIRECTORY_SEPARATOR, $class) . '.php';
+
+	// Генерируем полный путь к файлу
+	$path = str_replace("/Kernel", "", __DIR__) . DIRECTORY_SEPARATOR . $file;
+
+	// Проверяем, существует ли файл
+	if (file_exists($path)) {
+		require_once $path;
+	} else {
+		throw new Exception("Файл для класса $class ($path) не найден.");
+	}
+});
diff --git a/server/config.php b/server/config.php
new file mode 100644
index 0000000..dea889c
--- /dev/null
+++ b/server/config.php
@@ -0,0 +1,10 @@
+<?php
+
+return [
+	"db" => [
+		"host" => "localhost",
+		"name" => "flowtask",
+		"user" => "eugene",
+		"password" => "root"
+	]
+];
\ No newline at end of file
diff --git a/server/index.php b/server/index.php
new file mode 100644
index 0000000..5a4aa2a
--- /dev/null
+++ b/server/index.php
@@ -0,0 +1,7 @@
+<?php
+
+$CNF = include "config.php";
+require_once "Kernel/load.php";
+
+$app = new App\App();
+$app -> init();
diff --git a/server/libs/DataContain.php b/server/libs/DataContain.php
new file mode 100644
index 0000000..92b7bcc
--- /dev/null
+++ b/server/libs/DataContain.php
@@ -0,0 +1,32 @@
+<?php
+
+namespace libs;
+
+trait DataContain {
+	protected Array $data = [];
+	protected Array $data_fields = [];
+
+	protected function set_fields(Array $fields) {
+		$this -> data_fields = $fields;
+	}
+
+	public function __get(String $field_name) {
+		if(!isset($this -> data[$field_name])) {
+			throw new Exception("Field `{$field_name}` in User object not found");
+		}
+
+		return $this -> data[$field_name];
+	}
+
+	public function __set(String $field_name, $field_value) {
+		if(!in_array($this -> data_fields[$field_name])) {
+			throw new Exception("Field `{$field_name}` not provided in User object");
+		}
+
+		$this -> data[$field_name] = $field_value;
+
+		if(property_exists($this, "changed_fields") and is_array($this -> changed_fields)) {
+			$this -> changed_fields[] = $field_name;
+		}
+	}
+}
\ No newline at end of file
diff --git a/server/libs/DataStorage.php b/server/libs/DataStorage.php
new file mode 100644
index 0000000..e617a49
--- /dev/null
+++ b/server/libs/DataStorage.php
@@ -0,0 +1,71 @@
+<?php
+
+namespace libs;
+
+trait DataStorage {
+	protected $tablename;
+	protected $changed_fields = [];
+	protected int $id;
+
+	public function get_id() :int {
+		return $this -> id;
+	}
+
+	protected function set_tablename(String $tablename) {
+		$this -> tablename = $tablename;
+	}
+
+	public function get_tablename() :String {
+		return $this -> tablename;
+	}
+
+	public function get_chanched_fields() :Array {
+		return $this -> changed_fields;
+	}
+
+	public function create_new() :int {
+		if(count($this -> data_fields) != count($this -> data)) {
+			return 0;
+		}
+
+		$fields = "`" . implode("`,`", $this -> data_fields) . "`";
+		$values = "'" . implode("','", array_values($this -> data)) . "'";
+		
+		$sql = "INSERT INTO `{$this -> tablename}`({$fields}) VALUES ({$values})";
+		$result = app() -> db() -> query($sql);
+
+		$this -> id = app() -> db() -> last_insert_id();
+		return $result;
+	}
+
+	public function init_by_field(String $field, $val) :bool {
+		$sql = "SELECT * FROM `{$this -> tablename}` WHERE `{$field}`='{$val}'";
+		$result = app() -> db() -> query($sql);
+
+		if(!$result or !$result -> num_rows) {
+			return false;
+		}
+
+    $this -> data = $result -> fetch_assoc();
+    $this -> id = $this -> data["id"];
+
+		return true;
+	}
+
+	public function update() :bool {
+		if(!count($this -> changed_fields)) {
+			return true;
+		}
+
+		$fields = [];
+		
+		foreach($this -> changed_fields as $field_name) {
+			$fields[] = "`{$field_name}`='{$this -> data[$field_name]}'";
+		}
+		
+		$fields = implode(",", $fields);
+
+		$sql = "UPDATE `{$this -> tablename}` SET {$fields} WHERE `id`='{$this -> id}' LIMIT 1";
+		return app() -> db() -> query($sql);
+	}
+}
\ No newline at end of file
diff --git a/server/libs/utils.php b/server/libs/utils.php
new file mode 100644
index 0000000..445c587
--- /dev/null
+++ b/server/libs/utils.php
@@ -0,0 +1,38 @@
+<?php
+
+function response_prepared($data) {
+	$response = [
+		"response" => $data
+	];
+
+	@header('Content-Type: application/json');
+
+	return json_encode($response);
+}
+
+function app() {
+	global $app;
+
+	return $app;
+};
+
+function dd($var) {
+	die(var_dump($var));
+}
+
+function normalize_input_user_name(String $uname) :String {
+	return trim(addslashes(strip_tags($uname)));
+}
+
+function get_create_at_timestamp() :String {
+	return date("Y-m-d H:i:s");
+}
+
+function error(String $class, String $errtext): Array {
+	return [
+		"error" => [
+			"class" => ucfirst($class),
+			"text" => $errtext
+		]
+	];
+}
\ No newline at end of file