diff --git a/.env.example b/.env.example
index 2494326..7ca29ea 100644
--- a/.env.example
+++ b/.env.example
@@ -1 +1,4 @@
-GITEA_INSTANCE_BASE_URL="https://gitea.example.com"
\ No newline at end of file
+GITEA_INSTANCE_BASE_URL="https://gitea.example.com"
+GITEA_ACCESS_TOKEN="access_token"
+GITEA_OWNER="owner"
+GITEA_REPOSITORY="repository"
\ No newline at end of file
diff --git a/Dockerfile b/Dockerfile
index 720d913..4bc77de 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -13,7 +13,7 @@ WORKDIR /var/src
 
 COPY ./src /var/src
 
-# RUN composer install
+RUN composer install
 
 USER php
 
diff --git a/docker-compose.yml b/docker-compose.yml
index 9819e9d..8fa74ec 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -7,6 +7,9 @@ services:
       dockerfile: Dockerfile
     environment:
       GITEA_INSTANCE_BASE_URL: ${GITEA_INSTANCE_BASE_URL}
+      GITEA_ACCESS_TOKEN: ${GITEA_ACCESS_TOKEN}
+      GITEA_OWNER: ${GITEA_OWNER}
+      GITEA_REPOSITORY: ${GITEA_REPOSITORY}
     volumes:
       - ./src:/var/src
     networks:
diff --git a/src/app.php b/src/app.php
index b3d9bbc..d7275a2 100644
--- a/src/app.php
+++ b/src/app.php
@@ -1 +1,177 @@
 <?php
+
+\define('RED', "\033[0;31m");
+\define('GREEN', "\033[1;32m");
+\define('YELLOW', "\033[1;33m");
+\define('LITE_CYAN', "\e[96m");
+\define('NC', "\033[0m");
+
+function sendRequest ($method = 'GET', $endpoint = '', $data = []): array {
+
+    if (!\extension_loaded('curl')) {
+        throw new \Exception('CURL extension is not loaded');
+    }
+
+    $curl = \curl_init();
+
+    if(!$curl) {
+        throw new \Exception('CURL extension is not loaded');
+    }
+
+    $payload = '';
+
+    if (isset($data['request']) && \is_array($data['request']) && \count($data['request']) > 0) {
+        $payload = \json_encode($data['request']);
+    }
+
+    $fh = null;
+    $fileSize = 0;
+
+    if (isset($data['file']) && !empty($data['file']) && \file_exists($data['file'])) {
+        $fh = \fopen($data['file'], 'r');
+        $fileSize = \filesize($data['file']);
+    }
+
+    if (isset($data['user']) && !empty($data['user'])) {
+        \curl_setopt($curl, CURLOPT_USERPWD, $data['user'] . ':' . \getenv('GITEA_ACCESS_TOKEN'));
+    }
+
+    \curl_setopt($curl, CURLOPT_URL, \getenv('GITEA_INSTANCE_BASE_URL') . $endpoint .'?access_token=' . \getenv('GITEA_ACCESS_TOKEN'));
+    \curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, 2);
+    \curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, true);
+    \curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
+    \curl_setopt($curl, CURLOPT_HEADER, true);
+
+    if ($method === 'POST' || $method === 'PUT') {
+        if (!empty($payload)) {
+            \curl_setopt($curl, CURLOPT_POSTFIELDS, $payload);
+            \curl_setopt($curl, CURLOPT_HTTPHEADER, ['Content-Type: application/json']);
+        }
+    }
+
+    if ($method === 'PUT') {
+        \curl_setopt($curl, CURLOPT_PUT, true);
+    }
+
+    if ($fh) {
+        \curl_setopt($curl, CURLOPT_INFILE, $fh);
+        \curl_setopt($curl, CURLOPT_INFILESIZE, $fileSize);
+    }
+
+    \curl_setopt($curl, CURLOPT_CONNECTTIMEOUT, 20);
+    \curl_setopt($curl, CURLOPT_TIMEOUT, 20);
+
+    $response = \curl_exec($curl);
+
+    if(\curl_errno($curl) > 0) {
+        throw new \Exception('Curl error: #' . \curl_errno($curl)  . ' - ' . \curl_error($curl));
+    }
+
+    $header = \substr($response, 0, \curl_getinfo($curl, CURLINFO_HEADER_SIZE));
+    $body = \substr($response, \curl_getinfo($curl, CURLINFO_HEADER_SIZE));
+    $httpCode = (int) \curl_getinfo($curl, CURLINFO_HTTP_CODE);
+
+    $headers = \explode("\r\n", $header);
+
+    \curl_close($curl);
+
+    if (isset($data['file']) && !empty($data['file']) && \file_exists($data['file'])) {
+        \fclose($fh);
+    }
+
+    return [
+        'http_code' => $httpCode,
+        'headers' => $headers,
+        'body' => $body,
+    ];
+}
+
+function responseEncode (array $response): mixed {
+
+    $data = \json_decode($response['body'], true);
+
+    if (\json_last_error() !== JSON_ERROR_NONE) {
+        throw new \Exception('Invalid response json: ' . json_last_error_msg());
+    }
+
+    return $data;
+}
+
+function showTerminalMessage (string $message = '', string $color = ''): void
+{
+    echo $color . $message . NC . "\r\n";
+}
+
+try {
+
+    $response = sendRequest('GET', '/api/v1/user');
+    $data = responseEncode($response);
+
+    if ($response['http_code'] !== 200) {
+        throw new \Exception('Failed to get user information. Response http code: ' . $response['http_code'] . ', Message: ' . $data['message']);
+    }
+
+    $user = $data;
+    $login = $user['login'];
+    showTerminalMessage('User data: OK', GREEN);
+
+
+
+    $response = sendRequest('GET', '/api/v1/repos/' . \getenv('GITEA_OWNER') . '/' . \getenv('GITEA_REPOSITORY') . '/releases');
+    $data = responseEncode($response);
+
+    if ($response['http_code'] !== 200) {
+        throw new \Exception('Failed to get repository releases information. Response http code: ' . $response['http_code'] . ', Message: ' . $data['message']);
+    }
+
+    if (!isset($data[0]) || !\is_array($data[0])) {
+        throw new \Exception('Unexpected release data structure');
+    }
+
+    $lastRelease = $data[0];
+    $tag = $lastRelease['tag_name'];
+    showTerminalMessage('Last release data: OK', GREEN);
+
+
+    $response = sendRequest('GET', '/api/v1/repos/' . \getenv('GITEA_OWNER') . '/' . \getenv('GITEA_REPOSITORY') . '/archive/' . $tag . '.zip');
+    $zipContent = $response['body'];
+
+    if ($response['http_code'] !== 200) {
+        throw new \Exception('Failed receiving zip archive. Response http code: ' . $response['http_code'] . ', Message: ' . $data['message']);
+    }
+
+    if (empty($response['body'])) {
+        throw new \Exception('Failed receiving zip archive. Empty file');
+    }
+
+    \file_put_contents(__DIR__ . '/package.zip', $zipContent);
+    showTerminalMessage('Download zip archive: OK', GREEN);
+
+
+
+    $response = sendRequest('PUT', '/api/packages/' . \getenv('GITEA_OWNER') . '/composer?version=' . $tag, [
+        'user' => $login,
+        'file' => __DIR__ . '/package.zip',
+    ]);
+
+    \unlink(__DIR__ . '/package.zip');
+
+    if ($response['http_code'] !== 201) {
+        $data = responseEncode($response);
+
+        throw new \Exception('Failed update package. Response http code: ' . $response['http_code'] . ', Message: ' . $data['errors'][0]['message']);
+    }
+
+    showTerminalMessage('Update package: OK', GREEN);
+
+
+} catch (\Exception $e) {
+
+    showTerminalMessage("\r\n");
+    showTerminalMessage( 'FAILED!', RED);
+    showTerminalMessage( "Error: " . $e->getMessage(), RED);
+    exit(1);
+}
+
+showTerminalMessage("\r\n");
+showTerminalMessage('SUCCESS!', GREEN);
\ No newline at end of file
diff --git a/src/composer.json b/src/composer.json
new file mode 100644
index 0000000..183d7d3
--- /dev/null
+++ b/src/composer.json
@@ -0,0 +1,5 @@
+{
+  "require": {
+    "ext-curl": "*"
+  }
+}
\ No newline at end of file