Refactor to separate commands

src/Console/Command/InstallCommand.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace App\Console\Command;
+
+use App\Process\Process;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+
+final class InstallCommand extends AbstractCommand
+{
+    public function execute(InputInterface $input, OutputInterface $output): int
+    {
+        $extraArgs = $input->getOption('extra-args');
+        $workingDir = $input->getOption('working-dir');
+
+        // TODO: Composer in Docker Compose?
+        $process = Process::create(
+            command: ['composer', 'install'],
+            extraArgs: $extraArgs,
+            workingDir: $workingDir,
+        );
+
+        $process->run();
+
+        return Command::SUCCESS;
+    }
+}