diff --git a/backend/composer.json b/backend/composer.json
new file mode 100644
index 0000000..a9c51dc
--- /dev/null
+++ b/backend/composer.json
@@ -0,0 +1,27 @@
+{
+	"name": "tpsoft/nutrio",
+	"description": "Backend pre jedalnicky s vypoctom kalorii.",
+	"type": "project",
+	"license": "MIT",
+	"autoload": {
+		"psr-4": {
+			"TPsoft\\Nutrio\\": "src/"
+		},
+		"files": [
+			"config/Configuration.php"
+		]
+	},
+	"authors": [
+		{
+			"name": "igor",
+			"email": "mino@tpsoft.org"
+		}
+	],
+	"require": {
+		"tpsoft/apilite": "^1.0",
+		"tpsoft/dbmodel": "^1.1"
+	},
+	"scripts": {
+		"model": "php scripts/createModel.php"
+	}
+}
\ No newline at end of file
diff --git a/backend/composer.lock b/backend/composer.lock
new file mode 100644
index 0000000..3a0878b
--- /dev/null
+++ b/backend/composer.lock
@@ -0,0 +1,113 @@
+{
+    "_readme": [
+        "This file locks the dependencies of your project to a known state",
+        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
+        "This file is @generated automatically"
+    ],
+    "content-hash": "9b92dc81ccf6b0cc7f350c56793c6523",
+    "packages": [
+        {
+            "name": "tpsoft/apilite",
+            "version": "v1.0.3",
+            "source": {
+                "type": "git",
+                "url": "https://gitea.tpsoft.org/TPsoft.org/APIlite.git",
+                "reference": "c0fd7b3fe5270ee44a84a92e9255ada2438812b7"
+            },
+            "require": {
+                "php": ">=8.2"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "TPsoft\\APIlite\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "GPL-3.0-or-later"
+            ],
+            "authors": [
+                {
+                    "name": "Igor Mino",
+                    "email": "mino@tpsoft.org",
+                    "homepage": "https://www.tpsoft.org",
+                    "role": "Developer"
+                }
+            ],
+            "description": "A set of tools to simplify the work of creating backend APIs for your frontend projects.",
+            "keywords": [
+                "api",
+                "json",
+                "php",
+                "rest",
+                "typescript"
+            ],
+            "funding": [
+                {
+                    "url": "https://www.anycoin.cz/donate/igormino",
+                    "type": "other"
+                }
+            ],
+            "time": "2025-10-13T21:36:34+00:00"
+        },
+        {
+            "name": "tpsoft/dbmodel",
+            "version": "v1.1.1",
+            "source": {
+                "type": "git",
+                "url": "https://gitea.tpsoft.org/TPsoft.org/DBmodel.git",
+                "reference": "ff5663282f1efaa6c79d36760afca25ac25c16e6"
+            },
+            "require": {
+                "ext-pdo": "*",
+                "php": ">=8.2"
+            },
+            "bin": [
+                "bin/dbmodel-files"
+            ],
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "TPsoft\\DBmodel\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "GPL-3.0-or-later"
+            ],
+            "authors": [
+                {
+                    "name": "Igor Mino",
+                    "email": "mino@tpsoft.org",
+                    "homepage": "https://www.tpsoft.org",
+                    "role": "Developer"
+                }
+            ],
+            "description": "This library extends the builtin PDO object by several useful features. ",
+            "keywords": [
+                "db",
+                "model",
+                "mysql",
+                "pdo",
+                "sqlite"
+            ],
+            "funding": [
+                {
+                    "url": "https://www.anycoin.cz/donate/igormino",
+                    "type": "other"
+                }
+            ],
+            "time": "2026-02-09T05:39:02+00:00"
+        }
+    ],
+    "packages-dev": [],
+    "aliases": [],
+    "minimum-stability": "stable",
+    "stability-flags": {},
+    "prefer-stable": false,
+    "prefer-lowest": false,
+    "platform": {},
+    "platform-dev": {},
+    "plugin-api-version": "2.6.0"
+}
diff --git a/backend/config/Configuration.php b/backend/config/Configuration.php
new file mode 100644
index 0000000..b0e58f4
--- /dev/null
+++ b/backend/config/Configuration.php
@@ -0,0 +1,31 @@
+<?php
+
+$others_config = scandir(__DIR__);
+$loaded = false;
+foreach ($others_config as $file) {
+	if ($file == basename(__FILE__)) continue;
+	if (substr($file, -4) == '.php') {
+		require_once __DIR__ . '/' . $file;
+		$loaded = true;
+	}
+}
+
+if (!$loaded) {
+	class Configuration
+	{
+		public const DB_TYPE = 'sqlite';
+		// MySQL
+		public const DB_HOST = 'localhost';
+		public const DB_USER = 'username';
+		public const DB_PASS = '****************';
+		public const DB_NAME = 'databasename';
+		// SQLite
+		public const DB_FILEPATH = __DIR__ . '/../../data/database.db';
+	}
+}
+
+$protocol = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off') ? "https://" : "http://";
+$host = $_SERVER['HTTP_HOST'];
+$uri = $_SERVER['REQUEST_URI']; // obsahuje aj query string
+
+define('URL_PREFIX', $protocol.$host.str_replace(basename($_SERVER['SCRIPT_NAME']), '', $_SERVER['SCRIPT_NAME']));
diff --git a/backend/scripts/createModel.php b/backend/scripts/createModel.php
new file mode 100644
index 0000000..0a17a85
--- /dev/null
+++ b/backend/scripts/createModel.php
@@ -0,0 +1,9 @@
+<?php
+
+require_once __DIR__ . '/../src/Init.php';
+use \TPsoft\DBmodel\Creator;
+
+global $dbh;
+$creator = new Creator($dbh);
+$creator->rootDir(realpath(__DIR__.'/../src/'));
+$creator->interact();
diff --git a/backend/src/Init.php b/backend/src/Init.php
new file mode 100644
index 0000000..4c35042
--- /dev/null
+++ b/backend/src/Init.php
@@ -0,0 +1,20 @@
+<?php
+
+require __DIR__ . '/../vendor/autoload.php';
+
+use \Exception;
+use \TPsoft\DBmodel\DBmodel;
+use \TPsoft\Nutrio\Maintenance;
+
+global $dbh;
+
+if (Configuration::DB_TYPE == 'mysql') {
+	$dbh = new DBmodel(sprintf('mysql:host=%s;dbname=%s;charset=utf8mb4', Configuration::DB_HOST, Configuration::DB_NAME), Configuration::DB_USER, Configuration::DB_PASS);
+} else if (Configuration::DB_TYPE == 'sqlite') {
+	$dbh = new DBmodel(sprintf('sqlite:%s', Configuration::DB_FILEPATH));
+} else {
+	throw new Exception('Unknown database type');
+}
+
+$maintenance = new Maintenance($dbh);
+$maintenance->database();
diff --git a/backend/src/Maintenance.php b/backend/src/Maintenance.php
new file mode 100644
index 0000000..75ebda0
--- /dev/null
+++ b/backend/src/Maintenance.php
@@ -0,0 +1,58 @@
+<?php
+
+namespace TPsoft\Nutrio\;
+
+class Maintenance extends \TPsoft\DBmodel\Maintenance
+{
+
+	public function database()
+	{
+		if (!$this->existsTable('options')) {
+			$this->checkDBTable('options', '
+				`key` VARCHAR(255) NOT NULL PRIMARY KEY,
+				`value` VARCHAR(255) NOT NULL
+			');
+			$this->dbver(1);
+		}
+		$dbver = $this->dbver();
+		if ($dbver == 1) {
+			// create new
+		}
+	}
+
+	protected function settings(string $key, ?string $value = null): string|false
+	{
+		if (is_null($value)) {
+			return $this->dbh->getOne(sprintf('SELECT `value` FROM `options` WHERE `key` = %s', $this->dbh->quote($key)));
+		} else {
+			$db_type = $this->dbh->getDBtype();
+			switch ($db_type) {
+				case 'mysql':
+					return $this->dbh->query(sprintf(
+						'INSERT INTO `options` (`key`, `value`) VALUES (%s, %s) ON DUPLICATE KEY UPDATE `value` = %s',
+						$this->dbh->quote($key),
+						$this->dbh->quote($value),
+						$this->dbh->quote($value)
+					)) !== false;
+					break;
+				case 'sqlite':
+					return $this->dbh->query(sprintf(
+						'INSERT INTO `options` (`key`, `value`) VALUES (%s, %s) ON CONFLICT(`key`) DO UPDATE SET `value` = %s',
+						$this->dbh->quote($key),
+						$this->dbh->quote($value),
+						$this->dbh->quote($value)
+					)) !== false;
+					break;
+				default:
+					new \Exception('Unknown DB type: ' . $db_type);
+					return false;
+					break;
+			}
+		}
+	}
+
+	protected function dbver(?string $ver = null)
+	{
+		return $this->settings('version', $ver);
+	}
+}