diff --git a/app/Commander.php b/app/Commander.php
new file mode 100644
index 0000000..73a566a
--- /dev/null
+++ b/app/Commander.php
@@ -0,0 +1,32 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Syntatis\Version\CLI;
+
+use Symfony\Component\Console\Application;
+use Symfony\Component\Console\Command\Command;
+use Syntatis\Version\CLI\Commands\ValidateCommand;
+
+final class Commander extends Application
+{
+	public const VERSION = '0.1.0-alpha.0';
+
+	public function __construct()
+	{
+		parent::__construct('Ver', self::VERSION);
+
+		$this->addCommands($this->getCommands());
+	}
+
+	/**
+	 * @return array<Command>
+	 * @phpstan-return list<Command>
+	 */
+	private function getCommands(): array
+	{
+		return [
+			new ValidateCommand(),
+		];
+	}
+}
diff --git a/app/Commands/ValidateCommand.php b/app/Commands/ValidateCommand.php
new file mode 100644
index 0000000..ae48ae9
--- /dev/null
+++ b/app/Commands/ValidateCommand.php
@@ -0,0 +1,54 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Syntatis\Version\CLI\Commands;
+
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\Console\Style\SymfonyStyle;
+use Throwable;
+use TypeError;
+use Version\Version;
+
+use function gettype;
+use function is_string;
+use function sprintf;
+
+final class ValidateCommand extends Command
+{
+	/**
+	 * Configure the command options and arguments.
+	 */
+	protected function configure(): void
+	{
+		$this->setName('validate');
+		$this->setDescription('Validate a version.');
+		$this->setHelp('This command checks if the provided value is a valid Semantic Version (SemVer) version format.');
+		$this->setAliases(['val']);
+		$this->addArgument('version', InputArgument::REQUIRED, 'Version to validate');
+	}
+
+	protected function execute(InputInterface $input, OutputInterface $output): int
+	{
+		$style = new SymfonyStyle($input, $output);
+		$version = $input->getArgument('version');
+
+		try {
+			if (is_string($version)) {
+				Version::fromString($version);
+				$style->success(sprintf("Version string '%s' is valid and can be parsed", $version));
+
+				return Command::SUCCESS;
+			}
+
+			throw new TypeError(sprintf("Invalid type of value to validate. Expected string, '%s' given", gettype($version)));
+		} catch (Throwable $th) {
+			$style->error($th->getMessage());
+
+			return Command::FAILURE;
+		}
+	}
+}
diff --git a/app/Increment.php b/app/Increment.php
deleted file mode 100644
index 51aed88..0000000
--- a/app/Increment.php
+++ /dev/null
@@ -1,9 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace Syntatis\Version\CLI;
-
-final class Increment
-{
-}
diff --git a/bin/version b/bin/version
old mode 100644
new mode 100755
index 77f5404..bc5eeda
--- a/bin/version
+++ b/bin/version
@@ -1,4 +1,16 @@
 #!/usr/bin/env php
 <?php
 
-require __DIR__ . '/../vendor/autoload.php';
+use Symfony\Component\Console\Application;
+use Syntatis\Version\CLI\Commander;
+
+$autoloadFile = dirname(__DIR__, 4) . '/vendor/autoload.php';
+
+if (file_exists($autoloadFile)) {
+    require_once $autoloadFile;
+} else {
+	require_once dirname(__DIR__) . '/vendor/autoload.php';
+}
+
+$app = new Commander();
+$app->run();
diff --git a/inc/functions.php b/inc/functions.php
deleted file mode 100644
index a4de206..0000000
--- a/inc/functions.php
+++ /dev/null
@@ -1,10 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace App;
-
-function main(): void
-{
-	echo 'Hello, World!';
-}
diff --git a/phpcs.xml.dist b/phpcs.xml.dist
index 0650374..8e9ec78 100644
--- a/phpcs.xml.dist
+++ b/phpcs.xml.dist
@@ -15,7 +15,6 @@
 
 	<!-- The directories to apply the rules -->
 	<file>./app/</file>
-	<file>./inc/</file>
 
 	<!-- Show the warning but exit with 0. The Warning is fine -->
 	<config name="ignore_warnings_on_exit" value="1"/>
diff --git a/phpstan.neon.dist b/phpstan.neon.dist
index a281b06..6fcd983 100644
--- a/phpstan.neon.dist
+++ b/phpstan.neon.dist
@@ -2,5 +2,8 @@ parameters:
   level: 10
   paths:
     - app
-    - inc
     - tests/app
+  ignoreErrors:
+      -
+        identifier: missingType.iterableValue
+        path: tests/*
diff --git a/tests/app/Commands/ValidateCommandTest.php b/tests/app/Commands/ValidateCommandTest.php
new file mode 100644
index 0000000..27fac63
--- /dev/null
+++ b/tests/app/Commands/ValidateCommandTest.php
@@ -0,0 +1,63 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Syntatis\Tests\Commands;
+
+use PHPUnit\Framework\TestCase;
+use Symfony\Component\Console\Tester\CommandTester;
+use Syntatis\Version\CLI\Commander;
+
+use function sprintf;
+
+class ValidateCommandTest extends TestCase
+{
+	private Commander $commander;
+
+	public function setUp(): void
+	{
+		parent::setUp();
+
+		$this->commander = new Commander();
+	}
+
+	/** @dataProvider dataInvalidVersionArgument */
+	public function testInvalidVersionArgument(string $version): void
+	{
+		$tester = new CommandTester($this->commander->get('validate'));
+		$tester->execute(['version' => $version]);
+
+		self::assertStringContainsString(
+			sprintf("[ERROR] Version string '%s' is not valid and cannot be parsed", $version),
+			$tester->getDisplay(),
+		);
+	}
+
+	/** @dataProvider dataValidVersionArgument */
+	public function testValidVersionArgument(string $version): void
+	{
+		$tester = new CommandTester($this->commander->get('validate'));
+		$tester->execute(['version' => $version]);
+
+		self::assertStringContainsString(
+			sprintf("[OK] Version string '%s' is valid and can be parsed", $version),
+			$tester->getDisplay(),
+		);
+	}
+
+	public static function dataInvalidVersionArgument(): iterable
+	{
+		yield ['v'];
+		yield ['v0'];
+		yield ['v0.0'];
+	}
+
+	public static function dataValidVersionArgument(): iterable
+	{
+		yield ['1.0.0'];
+		yield ['2.1.7-alpha'];
+		yield ['1.0.0-beta.1'];
+		yield ['3.4.5+build.78'];
+		yield ['0.9.1-alpha.1+exp.sha.5114f85'];
+	}
+}
diff --git a/tests/app/IncrementTest.php b/tests/app/IncrementTest.php
deleted file mode 100644
index 8eb8c1a..0000000
--- a/tests/app/IncrementTest.php
+++ /dev/null
@@ -1,15 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace Syntatis\Tests;
-
-use PHPUnit\Framework\TestCase;
-
-class IncrementTest extends TestCase
-{
-	public function testTrue(): void
-	{
-		$this->assertTrue(true);
-	}
-}