diff --git a/bin/brain-games b/bin/brain-games
index d6e61c2..5550342 100755
--- a/bin/brain-games
+++ b/bin/brain-games
@@ -1,5 +1,6 @@
 #!/usr/bin/env docker-compose run php
 <?php
 
-require_once './vendor/autoload.php';
-require_once './src/Cli.php';
+use function BrainGames\Cli\greeting;
+
+greeting();
\ No newline at end of file
diff --git a/composer.json b/composer.json
index d833e22..68dabf7 100644
--- a/composer.json
+++ b/composer.json
@@ -5,7 +5,10 @@
     "autoload": {
         "psr-4": {
             "BrainGames\\": "src/"
-        }
+        },
+        "files": [
+            "src/Cli.php"
+        ]
     },
     "authors": [
         {
diff --git a/src/Cli.php b/src/Cli.php
index 687bd3e..0f4029d 100644
--- a/src/Cli.php
+++ b/src/Cli.php
@@ -5,6 +5,9 @@
 use function cli\line;
 use function cli\prompt;
 
-line('Welcome to the Brain Game!');
-$name = prompt('May I have your name?');
-line("Hello, %s!", $name);
+function greeting(): void
+{
+    line('Welcome to the Brain Game!');
+    $name = prompt('May I have your name?');
+    line("Hello, %s!", $name);
+}