add custom package from packagist

composer.json

@@ -0,0 +1,18 @@
+{
+    "name": "supervoron/otus-php-pro",
+    "type": "project",
+    "autoload": {
+        "psr-4": {
+            "Supervoron\\OtusPhpPro\\": "src/"
+        }
+    },
+    "authors": [
+        {
+            "name": "Dmitriy Vorontsov",
+            "email": "[email protected]"
+        }
+    ],
+    "require": {
+        "supervoron/formatter-composer-package": "^1.0"
+    }
+}

src/index.php

@@ -0,0 +1,10 @@
+<?php
+
+declare(strict_types=1);
+
+use supervoron\FormatterComposerPackage\StringFormatter;
+
+require '../vendor/autoload.php';
+
+$stringFormatter = new StringFormatter();
+echo ($stringFormatter->toUpperCase('get it up'));