julienmonnerie/site/controllers/home.php

<?php

return function ($site) {

    // Get exhibitions field content (stored as yaml) and parse it to return an array
    $exhibitions = $site->exhibitions()->yaml();

    // Add url based title to each exhibition
    foreach ($exhibitions as &$exhibition) {
        $exhibition['title'] = str_replace(['http://', 'https://', 'www.', '.html'], '', $exhibition['url']);
        $exhibition['title'] = rtrim($exhibition['title'], '/');
    }

    // Get contact fields content
    $email = $site->email();
    $instagram = $site->instagram();
    $portfolio = $site->portfolio()->toFile();

    // Get image files section content
    $images = $site->files()->template("full_screen_image")->shuffle();

    return [
        'exhibitions' => $exhibitions,
        'email' => $email,
        'instagram' => $instagram,
        'portfolio' => $portfolio,
        'images' => $images
    ];
};