start . me .
Directory path . php , dirlist .

HTML Document File : dirlist-notes.html 

<?php if (isset($_REQUEST["show-source"])) {
header('Content-Type: text/plain');
die(file_get_contents($_SERVER['SCRIPT_FILENAME']));
} ?>
<!DOCTYPE html>
<html lang="en">

<head>
    <title>directory listing customization in Apache</title>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
</head>

<body>

    <h2>inspiration:</h2>
    <a
        href="https://perishablepress.com/better-default-directory-views-with-htaccess/">perishablepress.com/better-default-directory-views-with-htaccess/</a>

    <h2>apache-conf:</h2>

    <pre class="code">
IndexOptions SuppressHTMLPreamble FancyIndexing
HeaderName /php/dirlist/dirlist-header.php
        </pre>

    <h2>shell vscode remote:</h2>

    <pre class="code">
code /etc/apache2/sites-enabled/000-default-le-ssl.conf
apachectl restart
        </pre>

    <h2>php (disabled):</h2>
    <pre class="code">
[php $dir = urldecode(parse_url($_SERVER['REQUEST_URI'], PHP_URL_PATH)); ]
[= $dir ]
        </pre>

    <h2>.htaccess</h2>

    <pre class="code">

AddHandler application/x-httpd-php .html

########################

RewriteEngine on

# a directory
RewriteCond %{REQUEST_FILENAME} -d

# without index files
RewriteCond %{REQUEST_FILENAME}/index.php !-f
RewriteCond %{REQUEST_FILENAME}/index.html !-f

# exception case: explicitly use Apache dirlist
RewriteCond %{REQUEST_FILENAME} !(.*\/_.*)

RewriteRule (.*) php/dirlist/dirlist.php

########################
        </pre>

    <hr>

    <script src="/web/show-source.js" data-href="/php/dirlist/dirlist.php?show-source"></script>
    <script src="/web/show-source.js" data-href="/php/dirlist/dirlist-functions.php?show-source"></script>
    <script src="/web/show-source.js" data-href="/php/dirlist/dirlist-header.php?show-source"></script>

    <hr>

</body>

</html>