Providing an APT repo with aptly and Apache
/etc/apache2/sites-available/apt.your-domain.de.conf
<VirtualHost *:80>
ServerName apt.your-domain.de
DocumentRoot /home/dhl/.aptly/public/
<Directory /home/dhl/.aptly/public/>
IndexIgnore HEADER.html
Options Indexes FollowSymLinks
AllowOverride None
Require all granted
</Directory>
</VirtualHost>
Activate
root@host: a2ensite apt.your-domain.de.conf
root@host: systemctl reload apache2