diff --git a/.gitignore b/.gitignore
index b28e598f1..578705d20 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,7 @@
 .idea/
 /vendor/
+/mariadb/
 .DS_Store
 .AppleDouble
 .LSOverride
+.env
\ No newline at end of file
diff --git a/README.md b/README.md
index b44ec14b8..8782b7469 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,5 @@
 # PHP_2024
 
+Test composer library
+
 https://otus.ru/lessons/razrabotchik-php/?utm_source=github&utm_medium=free&utm_campaign=otus
diff --git a/composer.json b/composer.json
new file mode 100644
index 000000000..c6a210ea0
--- /dev/null
+++ b/composer.json
@@ -0,0 +1,5 @@
+{
+    "require": {
+        "jack-frost/guess-number": "^1.0"
+    }
+}
diff --git a/composer.lock b/composer.lock
new file mode 100644
index 000000000..b059d3ad2
--- /dev/null
+++ b/composer.lock
@@ -0,0 +1,50 @@
+{
+    "_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": "83199422721130b13595482094759e57",
+    "packages": [
+        {
+            "name": "jack-frost/guess-number",
+            "version": "v1.0.4",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/JackFrost/guess-number.git",
+                "reference": "122c5ba6d14b181aa7b8461dea7cb859ed1e116c"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/JackFrost/guess-number/zipball/122c5ba6d14b181aa7b8461dea7cb859ed1e116c",
+                "reference": "122c5ba6d14b181aa7b8461dea7cb859ed1e116c",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^7.0"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "JackFrost\\GuessNumber\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "description": "Guess number",
+            "support": {
+                "issues": "https://github.com/JackFrost/guess-number/issues",
+                "source": "https://github.com/JackFrost/guess-number/tree/v1.0.4"
+            },
+            "time": "2024-02-17T06:19:54+00:00"
+        }
+    ],
+    "packages-dev": [],
+    "aliases": [],
+    "minimum-stability": "stable",
+    "stability-flags": [],
+    "prefer-stable": false,
+    "prefer-lowest": false,
+    "platform": [],
+    "platform-dev": [],
+    "plugin-api-version": "2.2.0"
+}
diff --git a/docker-compose.yml b/docker-compose.yml
new file mode 100644
index 000000000..1dd60d45c
--- /dev/null
+++ b/docker-compose.yml
@@ -0,0 +1,13 @@
+version: "3"
+
+services:
+
+  composer-app:
+    build:
+      context: ./docker/php
+      dockerfile: Dockerfile
+    image: composer-app
+    container_name: composer-app
+    restart: always
+    volumes:
+      - ./:/data/
diff --git a/docker/php/Dockerfile b/docker/php/Dockerfile
new file mode 100644
index 000000000..a58333c69
--- /dev/null
+++ b/docker/php/Dockerfile
@@ -0,0 +1,15 @@
+FROM php:7.0-fpm-alpine
+
+RUN apk add --no-cache \
+    zip \
+    unzip \
+    git
+
+RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer && \
+    chmod +x /usr/local/bin/composer
+
+WORKDIR /data
+
+VOLUME /data
+
+CMD ["php-fpm"]
\ No newline at end of file
diff --git a/index.php b/index.php
new file mode 100644
index 000000000..0b36716e2
--- /dev/null
+++ b/index.php
@@ -0,0 +1,11 @@
+<?php
+
+declare(strict_types=1);
+
+require __DIR__ . '/vendor/autoload.php';
+
+use JackFrost\GuessNumber\GuessNumber;
+
+$game = new GuessNumber();
+
+echo $game->check(5);