Initial PHP Slim project structure; built a very basic site template

src/app.php

@@ -0,0 +1,24 @@
+<?php
+use Psr\Http\Message\ResponseInterface as Response;
+use Psr\Http\Message\ServerRequestInterface as Request;
+use Slim\Factory\AppFactory;
+use Slim\Views\Twig;
+use Slim\Views\TwigMiddleware;
+
+require __DIR__ . '/../vendor/autoload.php';
+
+$app = AppFactory::create();
+
+// Add Error Handling Middleware
+$app->addErrorMiddleware(true, false, false);
+
+// Create Twig
+$twig = Twig::create(__DIR__ . '/../views', ['cache' => false]);
+
+// Add Twig-View Middleware
+$app->add(TwigMiddleware::create($app, $twig));
+
+$app->get('/', function (Request $request, Response $response, $args) {
+  $view = Twig::fromRequest($request);
+  return $view->render($response, 'index.twig');
+});